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beginner question

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Norman Crooks

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Nov 14, 1997, 3:00:00 AM11/14/97
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I`ve kept freshwater tanks for a couple of years, and have decided to
try my hand at keeping a fish only marine tank.

My question is whether or not it is necessary to have a substrate of any
kind in such a tank, and whether there is any advantage or disadvantage
to not having any substrate at all. I`ve read that the buffers in
crushed coral or dolomite (etc) are inactive at marine pH levels. I`ve
also heard that crushed coral can promote certain kinds of algae and is
a pain to keep clean. So: would I be a fool to go with no substrate at
all??

If I chose to would it be a problem to add a coral substrate later on?

Thanks for any responses.

William Horst

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Nov 15, 1997, 3:00:00 AM11/15/97
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I personally use 1" of live sand as a substrate in my Reef Tank. This has
worked well for me. You could use a plenum also. There a advantages and
disadvantages of both methods. I would suggest reading a good book. You can
find a book review web page at: http://www.users.fast.net/~bhorst/


Bill Horst
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Norman Crooks wrote in message <346C9AFC...@yorku.ca>...

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