Group: rec.aquaria.marine.misc Date: Wed, Sep 1, 1999, 12:48am (PDT+3)
From: liquid...@webtv.net (Lee Labelle) keeping sg low all the
time. good idea?
Group: rec.aquaria.marine.misc Date: Wed, Sep 1, 1999, 7:02pm (PDT+3)
From: liquid...@webtv.net (Lee Labelle) Re: keeping sg low all the
time. good idea?
good luck. It won't work... I've seen ick live for months in
salinities just about as low as yours. Hyposaline water doesn't kill
them. Shoot, even a freshwater dip doesn't kill them, it just makes the
little things fall off. Put them back in saltwater, they're fine...
> my question is if you kept the
> sg at the low level all the time wouldn't you create an atmosphere where
> ich could not survive? or would this be too much stress for the fish
> leading to other problems? thanx for your time.lee
Get the salinity back to where it should be. Feed your fish well. Do
water changes. Minimize your temperature swings, and make sure that
your temperature is where it should be (say, 80-82). Get a few cleaner
shrimp. If necessary, get a cleaner wrasse. Reduce anything stressing
the fish. Things will go wonderfully.
steve
--
---------------------------------------
Domain name for replies is "inconnect".
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Group: rec.aquaria.marine.misc Date: Thu, Sep 2, 1999, 11:21am (PDT+3)
From: liquid...@webtv.net (Lee Labelle) Re: keeping sg low all the
time. good idea?
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
Group: rec.aquaria.marine.misc Date: Fri, Sep 3, 1999, 5:07am (PDT+7)
From: home...@aol.com Re: keeping sg low all the time. good idea?
Group: rec.aquaria.marine.misc Date: Sat, Sep 4, 1999, 3:14pm (PDT+7)
From: home...@aol.com Re: keeping sg low all the time. good idea?
>>>IMO subjecting fish to hyposalinity, and then declaring that this
>>>methodology is benign, is
>>>highly laughable, and borders on recklessness, in its advocacy.
What borders on reckless is calling a scientifically proven
effective method laughable! Ignorance is No excuse. I have provided you
with the information needed to find the references as well as how to
contact plenty of people that have experience using hyposalinity at
1.010 or 1.009 (15 ppt or less). After all this you seem to choose to
wallow in your ignorance of this therapy rather than read the
references and check with people that have used it. You would call Dr.
Noga’s methods reckless? I suppose since he is only the leading fish
DVM in the USA and the professor of Aquatic Medicine at what is
probably the best veterinary college (NCSU) he should take your refute
seriously? After all you have been a hobbyist for 23 years! You
obviously don’t understand who he is! Why haven’t you gone to Aqualink
and asked people about their experience with this treatment?
>>>I would be more inclined to support a methodology that preserves the
>>>'natural' state of a organism's homeostacitiy.
Here is a quote from the article
“While temperature, oxygen, and pH readings should closely replicate
those found in natural seawater, specific gravity can be another story.
Many fish survive the harsh marine environment despite high
concentration of salts, rather than BECAUSE of them. Marine fish expend
a great deal of energy excreting salt in an effort to maintain their
internal salinity levels far below what is found in the surrounding
environment. These fish are hypotonic and have an internal salinity of
approximately 11 ppt (specific gravity of about 1.008). Lowering
salinity levels allows for higher dissolved oxygen content and reduces
the osmotic pressure upon the fish. Some marine fish breeders have
applied the advantages of lower salinity levels in raising marine fry
because of the reduced amounts of energy that are required for
osmoregulation.”
Stress can disturb the normal physiological equilibrium or
homeostasis of the animal by forcing a reallocation of energy within
its system. With a little better understanding of the physiology of
fish and osmoregulation you would see that a lower salinity can be used
to free up energy some of that energy for other bodily functions
including immune function.
>>>Placing ANY organism in a completely unnatural and potentially
>>>injurious condition makes no sense at all!
IMO, when used correctly hyposalinity is safer and more effective
than copper treatment. This would be supported by the fact that Dr.
Noga and other fish veterinarians NO LONGER consider copper the
treatment of choice for Cryptocaryon irritans. Talk about being
outdated! Lowering the osmotic gradient between the internal fluids of
the fish and the surrounding water is an established means to lower
stress for a limited period of time by reducing the amount of energy
required for osmoregulation. This principal can be applied by adding
some salt to freshwater or lowering the salinity of saltwater. This
principal is used to greatly improve survival rates when transporting
Blue Gill.
I don’t want to get of the subject of hyposalinity, but I could say
a great deal about your comments about antibiotics and chelated copper.
>>>You might absolutely kill the protozoans with hyposalinity, but
>>>where is the data that supports the facts that the fish's
>>>internal organs, immune systems, or life spans are NOT >>>affected
>>>by this treatment!
Actually Dr. Cheung and other concluded that boney marine fish can be
kept indefinitely at 16 ppt salinity (approximately a specific gravity
of 1.011). I am not advocating keeping fish at this SG permanently only
making a point about using it as a treatment. I am afraid you are the
one that has no evidence here. Where is the evidence to support your
contention?
>>>I also noticed that in the articles referenced to, the data
>>>'purporting' to support this methodology, is already almost 15 years
old!
Some of the references are old, but that hardly makes them invalid.
However, you failed to read the more recent references given at the end
of the article.
1. Kollman, R. SeaScope. Aquarium Systems, Inc., Spring 1998.
2. Noga, Edward J. Fish Disease Diagnosis and Treatment. Mosby-Year
Book, Inc. 1996.
3. Wilkerson, J. Clownfishes: A Guide to Their Captive Care, Breeding
& Natural History. Microcosm Ltd. 1998.
I hope these are recent enough for you!
>>>And no subsequent promulgation or advocacy by any responsible person
>>>in the ornamental reef fish industry, whether working in the
>>>commercial fields or in the public aquarium sector, or university
>>>biology research areas, has come forth to support this.
Wrong again! Perhaps you have heard of Instant Ocean Hatcheries (and
their salt “Instant Ocean). Maybe you don’t know who Tom Frakes is at
Instant Ocean is. As far as someone advocating it that works in the
commercial field or at a university. I assure you that a professor of
Aquatic Medicine (Dr Noga) knows a bit more about fish disease than
what you will find in the biology department. I have had long
conversations with Tom Frakes about this as well as Ron Shimek and
others. Maybe you know them? This method was also promoted at the 1998
MACNA conference. Dr. Rob Hildreth (not sure of spelling of this name)
addressed it in his presentation. I have much more I could say, but
this should suffice for any open-minded individuals.
>>>You do have the right to advocate what you feel might be of benefit,
>>>however, there is an old >>>caveat which I remember, which is, above
>>>all else, do no HARM! LOL and regards.
Actually, the only harm that may be done here is if anyone else reading
this adapts your apparent bury your head in the sand and don’t confuse
me with the facts attitude. I will not attempt to force you to look at
the evidence, you have the right to your opinion. My hope is that
others will examine it. So far it looks as if this discussion is
heavily one sided. I have provided names, sited references, and
suggested where you could easily find people that have experience with
this therapy. You have offered nothing of the kind to support your POV.
Regards,
Group: rec.aquaria.marine.misc Date: Sun, Sep 5, 1999, 3:49am (PDT+7)
From: home...@aol.com Re: keeping sg low all the time. good idea?
1) Mentioning that you wrote for FAMA around here won't get you any
respect. Most folks around here don't have a high opinion of the
credibility of information presented in it. I never understood why
until I read it.
2) Ultra-low salinities may kill ick - but are also sure to negatively
affect other invertebrates. And without the myriad of detrivores that
make a tank a more complete ecosystem, you're just asking for trouble.
I have never understood why so many people go to all of the trouble to
find new and improved cures for ick. The methods that have done mother
nature well for several million years still work just fine today. Low
stress, and a few cleaners. I've seen far too many tanks rid of ick too
easily using those techniques to even want to investigate others...
steve
> Terry Bartelme
>
> Sent via Deja.com http://www.deja.com/
> Share what you know. Learn what you don't.
--
No, what is truly "reckless" is finding a cure for ick that also has
the effect of ridding your tank of invertebrate detrivores, and stating
that it is "benign". Fish aren't the only thing in the sea, or in our
tanks. Anyone who ignores the importance of invertebrates in our
aquariums is either incredibly short-sighted, extremely ignorant, or
just hasn't thought things through.
> You would call Dr.
> Noga’s methods reckless? I suppose since he is only the leading fish
> DVM in the USA and the professor of Aquatic Medicine at what is
> probably the best veterinary college (NCSU) he should take your refute
> seriously?
You never seem to use the word "invertebrate". If all I wanted were
a few fish in a sterile tank, where I had to vacuum the sand every week,
and do lots of water changes, I suppose his method would work. But some
of us strive for something more.
> Actually Dr. Cheung and other concluded that boney marine fish can be
> kept indefinitely at 16 ppt salinity
Really? Well, let's see here. If he honestly expects that statement
to be accepted by the scientific community, then he should show that
he's done double-blind test with several groups of fish, to see if they
lived to their normal life spans. Considering that most marine fish
have life spans of over 10 years (some upwards of 40), then I really,
really doubt that he's been able to do that, now has he?
> I have had long
> conversations with Tom Frakes about this as well as Ron Shimek and
> others. Maybe you know them?
And just what did Ron have to say? Considering his statement "Some
mollusks, crustaceans and most fish kept at low salinities die of kidney
failure — it just takes them longer. A fish that dies in a couple of
years in a aquarium may have had the potential to live more than 20
years had the salinity been appropriate.", I doubt that it was anything
positive.
It'll be interesting to see how your aquarium frontiers article turns
out.
steve
>>>No, what is truly "reckless" is finding a cure for ick that also has
the effect of ridding your tank of invertebrate >>>detrivores, and
stating that it is "benign". Fish aren't the only thing in the sea, or
in our tanks. Anyone who >>>ignores the importance of invertebrates in
our aquariums is either incredibly short-sighted, extremely ignorant,
>>>or just hasn't thought things through.
To begin with, perhaps you where shortsighted or is it nearsighted
when reading my posts. Maybe you where the one that didn’t think things
through here. I clearly stated in my first post in this thread, “This
method works beautifully, but the only drawback is that it cannot be
used with inverts or live rock.” Who advocates using hyposalinity at
this level with inverts? Can you quote where I advocated this?
>>>You never seem to use the word "invertebrate". If all I wanted were
a few fish in a sterile tank, where I had to >>>vacuum the sand every
week, and do lots of water changes, I suppose his method would work.
But some of us >>>strive for something more.
Looks like you missed when I said, “Sharks and Rays have an entirely
different osmoregulation strategy and along with invertebrates cannot
be treated with hyposalinity.” I think that is the word invertebrate
again!
>>> Really? Well, let's see here. If he honestly expects that statement
to be accepted by the scientific community, >>>then he should show that
he's done double-blind test with several groups of fish, to see if they
lived to their >>>normal life spans. Considering that most marine fish
have life spans of over 10 years (some upwards of 40), >>>then I
really, really doubt that he's been able to do that, now has he?
Dr Cheung’s work was published in scientific journals and reviewed
by his peers, are you his peer?
>>>And just what did Ron have to say? Considering his statement "Some
mollusks, crustaceans and most fish >>>kept at low salinities die of
kidney failure — it just takes them longer.
Ron and I had a few drinks together when we talked about this. His
statement as it pertains to invertebrates is true. Most inverts are
osmoconformers not osmoregulators like boney marine fish.
>>> A fish that dies in a couple of years in a aquarium may have had
the potential to live more than 20 years had the >>>salinity been
appropriate.", I doubt that it was anything positive.
Anything Ron had to say here was based solely on a miscommunication
(He misunderstood someone). This was cleared up and Ron retracted his
statement that was based on a miscommunication. Ron has NO PROBLEM with
hyposalinity being used to treat a Cryptocaryon infection in fish.
Since treating the infection is the use I advocate, we have no
difference of opinion here. Ron does have some reservations about
keeping reef fish at this salinity permanently, as do I. As I said in
an earlier post in this thread, “My comments have been and continue to
be about the validity of hyposalinity as a therapy to cure Crytocaryon
irritans infections not on a permanent basis.”
>>>It'll be interesting to see how your aquarium frontiers article
turns out.
The upcoming articles are about controlling stress not treating Ich.
Regards,
Terry Bartelme
--
Nope, I apologize.
> >>>And just what did Ron have to say? Considering his statement "Some
> mollusks, crustaceans and most fish >>>kept at low salinities die of
> kidney failure — it just takes them longer.
>
> Ron and I had a few drinks together when we talked about this. His
> statement as it pertains to invertebrates is true. Most inverts are
> osmoconformers not osmoregulators like boney marine fish.
Actually, his statement pretty specifically says "fish"....
> >>> A fish that dies in a couple of years in a aquarium may have had
> the potential to live more than 20 years had the >>>salinity been
> appropriate.", I doubt that it was anything positive.
>
> Anything Ron had to say here was based solely on a miscommunication
> (He misunderstood someone). This was cleared up and Ron retracted his
> statement that was based on a miscommunication. Ron has NO PROBLEM with
> hyposalinity being used to treat a Cryptocaryon infection in fish.
Hmmm... sounds interesting. Having read quite a bit of his material,
and communicated personally with him, I haven't heard him retract it,
but for the time being, I'll take your word for it.
> >>>It'll be interesting to see how your aquarium frontiers article
> turns out.
>
> The upcoming articles are about controlling stress not treating Ich.
It actually sounds like it *is* about treating ich - by controlling
stress, and letting your fish live a little healthier, you're making a
very good step towards controlling ich. I'm looking forward to the
article.
> Perhaps some don't respect anything in print!
Actually, these days, that's about the safest way to go. It seems
like just about any loony with a theory can get in print. (No, I'm not
referring to you or any of your articles). After seeing first-hand the
kind of dated information that makes up the majority of FAMA, I
understand why so many people purchase it solely for the advertisements
(which are pretty good). Your article may have been the best they've
ever published, the best ever published in the world - but saying that
you were published in FAMA isn't the best way to get credibility. : )
> I suppose the fact that
> I also write for Marine Fish Monthly, SeaScope and should appear in
> Aquarium Frontiers in the near future and have been keeping marine
> aquariums since 1973 gives me less credibility that someone that has
> not done these things?
I didn't mention any of those things, now did I? If you want me to
expound on my view of each of them, I can, but you're the one who
brought them up.
> The short answer here is that although Ich does occasionally go away
> on its own, using cleaners in not a reliable method for curing Ich in
> an aquarium.
Really? I've seen a single cleaner wrasse turn a massive-infested
90-gallon tank into a very slightly-infested tank in a matter of 2
days...
But it sounds like you are speaking of completely eradicating ich for
good. Well, if that's what you want, then copper or other drastic
measures (possibly the hypolsalinity method) are the only choices. But
then again, any time you add a new fish, rock, or anything else, you've
always got to go through it again. : )
After having seen I-don't-know-how-many tanks that are completely
ick-free to the eye with just keeping stress low and a cleaner or two,
cleaners seem a very viable option to me - but again, if you have
stressed-out, unhealthy fish, even the cleaners aren't going to do much
for you. : )
> I am well aware that cleaners do eat some parasites, but I
> have seen many aquariums wiped out with Ich that contained both cleaner
> shrimp and cleaner wrasse.
Were you able to determine with 100% accuracy that it was the ick?
In my personaly experience (not as vast as yours, but not negligible,
either), I've never seen a fish death that could absolutely, positively
be said to be solely from ick. Parasites aren't the same thing as
predators, and assuming otherwise healthy and well-fed fish, I have seen
fish (like a blue tang that seemed to get ick just for fun) live for
over half a year with such massive infestations that it literally looked
like you'd rolled the thing in sugar.
I just can't believe after seeing so many fish live for so long with
such massive infestations that ick is lethal... I'm not saying that
this is the case with you, but pretty much every time "ick" turned out
to be the culprit, the people weren't dealing with cryptocaryon at all,
but amyloodinium or other beasts.
Incidentally, with all of those massively infected fish, once the
stressors were removed, and cleaners were added, things were dandy
within a week or two. I've never seen it fail. : ) I've also
recommended it to many people, and invariably, they've all had it work
out wonderfully once they figured out what was stressing the fish.
> I have also consulted with a lot of well
> known people in the hobby in person about the subject of Ich.
This is not an attack on you or on any of your colleagues - but
confusing "well known" with "credible" would be a serious mistake for
anyone, whether it be in this hobby or otherwise. I'm not saying that
they are mutually exclusive, or that they don't often go together - but
determining credibility on basis of fame or popular recognition is just
plain foolhardy. To narrow it down to marine biology, well, it's a
field that's just too new, too broad, and too unexplored - I don't think
you'll find a single well-known person in the field who hasn't said at
least a few things that weren't entirely true... and usually they've
said more than a few. Again, I'm not saying that they can't be trusted
in general, or that they're wicked, evil people - just two things:
1) Fame or recognition isn't *necessarily* credibility
2) Each assertion should be viewed independantly.
> > The short answer here is that although Ich does occasionally go
away
> > on its own, using cleaners in not a reliable method for curing Ich
in
> > an aquarium.
>
> Really? I've seen a single cleaner wrasse turn a massive-infested
> 90-gallon tank into a very slightly-infested tank in a matter of 2
> days...
TO begin with Ich cannot be cured in a matter of two days. The life
cycle is much longer than that and all three stages must be gone before
the parasite has been cleared. It would not be an exaggeration to say I
have advised a few hundred people over the years about treating Ich. I
have seen an awful lot of cases both in private, and commercial
aquaria. I couldn't begin to tell you how many times I have seen
cleaners fail to control an outbreak. Cleaner Wrasse become infected
and die themselves. In a case of a small number of parasites I think
they can help. I have also seen a lot of people declare their fish were
over Ich only for it to come back in a short time, usually worse than
before. It is part of the natural life cycle of this parasite to fall
off the fish. Sometimes this fools people into thinking the infection
is gone. I am not saying cleaners are worthless, just that the
conditions are very different in an aquarium verses the wild. IMO,
cleaners don't usually work in this situation.
> But it sounds like you are speaking of completely eradicating ich
for
> good. Well, if that's what you want, then copper or other drastic
> measures (possibly the hypolsalinity method) are the only choices.
But
> then again, any time you add a new fish, rock, or anything else,
you've
> always got to go through it again. : )
There is no need to purchase new rock, etc. if the treatment is carried
out in a seperate tank and the display is left without fish for a
minimum of thirty days to allow the parasite to die out from a lack of
food source (ie.fish). The preferable thing is to properly quarantine
and avoid infecting the dislpay to begin with.
> After having seen I-don't-know-how-many tanks that are completely
> ick-free to the eye with just keeping stress low and a cleaner or two,
> cleaners seem a very viable option to me - but again, if you have
> stressed-out, unhealthy fish, even the cleaners aren't going to do
much
> for you. : )
Yes, tanks that appear Ich free may have a low level of infection. It
could be possible for a cleaner to help in this circumstance. The
problem is you are walking a tight rope and as soon as something
happens that stresses out the fish, or you add to the density of the
population of parasites in the tank things can go downhill quickly.
Under these circumstances I do not find cleaners are usually very
effective for controlling the problem in aquariums.
>
> > I am well aware that cleaners do eat some parasites, but I
> > have seen many aquariums wiped out with Ich that contained both
cleaner
> > shrimp and cleaner wrasse.
>
> Were you able to determine with 100% accuracy that it was the ick?
> In my personaly experience (not as vast as yours, but not negligible,
> either),
Well, I know what it looks like under a microscope.
>>I've never seen a fish death that could absolutely, positively
be said to be solely from ick.
Actually, there is some truth to this. It is usually the secondary
bacterial infections caused by the wounds from the Cryptocaryon that
actually kill the fish. This is similar to when a cancer patient
actually dies from pnemonia when they have no resistance left. Did they
die from cancer or pnemonia? They would not have come down with
pnemonia in the last days of their life if the cancer had not weakened
them completely first.
Parasites aren't the same thing as
> predators, and assuming otherwise healthy and well-fed fish, I have
seen
> fish (like a blue tang that seemed to get ick just for fun) live for
> over half a year with such massive infestations that it literally
looked
> like you'd rolled the thing in sugar.
Cryptocaryon can act in a way that is similar to a preditor in an
aquarium. By this I mean they attack the animal and kill it because
there usually is very little natural balance in an aquarium setting.
This type of parasite is in unnatural enviroment in which balance is
gone. In the wild both the fish and the parasite can survive together.
Almost all fish have internal worms and they are kept in balance not by
the parasite but by the fish's immune system keeping the numbers low
enough for the fish to survive. Unfortunately this doesn't seem to be
the case with external parasites.
>
> I just can't believe after seeing so many fish live for so long with
> such massive infestations that ick is lethal... I'm not saying that
> this is the case with you, but pretty much every time "ick" turned out
> to be the culprit, the people weren't dealing with cryptocaryon at
all,
> but amyloodinium or other beasts.
Cryptocaryon irritans are very lethal, and are much more common in
aquariums than Amyloodinium IMO.
> Incidentally, with all of those massively infected fish, once the
> stressors were removed, and cleaners were added, things were dandy
> within a week or two. I've never seen it fail. : ) I've also
> recommended it to many people, and invariably, they've all had it work
> out wonderfully once they figured out what was stressing the fish.
I am happy to hear you have been succesful, many others have not. There
is a long list of treatments, chemicals and methods available for
treating Ich today. The problem is that the vast majority are not
consistantly reliable. Copper (IMO Cupramine is superior to any other
copper-based medications) or hyposalinity (15 ppt or less salinity) are
the only lab tested proven to be consistantly reliable treatments for
Cryptocaryon.
Cheers,
Terry Bartelme
> ---------------------------------------
> Domain name for replies is "inconnect".
> ---------------------------------------
>
> > The upcoming articles are about controlling stress not treating
Ich.
>
> It actually sounds like it *is* about treating ich - by controlling
> stress, and letting your fish live a little healthier, you're making a
> very good step towards controlling ich. I'm looking forward to the
> article.
>
> steve
Steve,
Of course you are right, stress is an factor in the health of fish.
Although I didn't intend to relate the two together directly (stress
and Ich) they can go hand in hand. Publishers often don't seem to feel
it is important to notify the author which issue their articles will
appear in. Hopefully, I will know ahead of time so I can let you know.
Thanks for the encouragement!
Terry Bartelme
> --
> ---------------------------------------
> Domain name for replies is "inconnect".
> ---------------------------------------
>
Indeed. In most cases Ick comes from changes in water quality and
according to my experience the cleaners always stop cleaning, start
secreting excessive mucus to wrap itself, hide in crevices and DIE
of ick FIRST.
> I am happy to hear you have been succesful, many others have not. There
> is a long list of treatments, chemicals and methods available for
> treating Ich today. The problem is that the vast majority are not
> consistantly reliable. Copper (IMO Cupramine is superior to any other
> copper-based medications) or hyposalinity (15 ppt or less salinity) are
> the only lab tested proven to be consistantly reliable treatments for
> Cryptocaryon.
That's why I do NOT believe in live rock.
Live rock = Ick depot due to unknown stability of
whatever the crap is hiding within,
and I simply cannot use my proven 3 tier treatment:
Cupramine + 1.018 + 83F treatment which
has always worked within 2-3 days.
I assure you, it does exist.
Charles J DeVito
Ravenheart Enterprises
rh...@gte.net
>That's why I do NOT believe in live rock.
I have 3 FO tanks and all have many fishes in them.
I have managed to keep a Platax pinnatus and
a Pygoplites diacanthus, not to mention a few butterflies,
for over a year.
Perhaps you can say its coincidence or my luck.
Christopher DiChiaro <C...@worldnet.att.net> wrote in message
news:7rgh6q$nsv$1...@bgtnsc03.worldnet.att.net...
Charles J DeVito <rh...@gte.net> wrote in message
news:U%IC3.6236$ZR2....@dfiatx1-snr1.gtei.net...
>
> Johnson L. Wu wrote in message <7rfgrq$f...@chronicle.concentric.net>...
> >That's why I do NOT believe in live rock.
>
Johnson L. Wu wrote in message <7rh175$8...@journal.concentric.net>...
I live in CA and I never see any LFS use live rock in
their fish tanks where specimens are kept for sale.
They always have live rock that's isolated in tanks
and are supposedly under curing.
They always tell me that new fish are stressed and
a lot of times they have to use copper to rid them of
ich first.
I do not have live rock, but I have old bowl rock that I never
wash and supposedly they contain a lot of beneficial bacteria.
With my setup I can use copper if necessary without the
risk of killing the *SHIT* that lives in live rock and causing
further destruction with the subsequent ammo spike.