Green Crack X Blue Dream

[Brayan Jacobsen]

Hieveryone! I have gotten royally confused with all the different varieties of blue neos that are available. I understand that they are from different lines of breeding, but I am looking for a more cohesive source to have a picture to the name of the shrimp.

I have a tank of blue dreams atm but in the future, i may do a rack of neos and have several varieties. I posted this topic to another forum and got an awesome neo genetic tree that was super insightful as well.

Those breeding guides/tables are kinda silly. The tree you've probably seen is a better way of visualizing it. The lineage of the shrimp is most important in cross breeding; if the shrimp come from different wildtypes (WTs), they'll likely throw WT shrimp when interbred, because the genes for their pigmentation are on separate loci (positions on the genome), and therefore are not expressed. The tree below helps, although it does have some inaccuracies.

So, you'll notice blue variations come from 3 of the 4 N. davidi WTs and also from N. palmata WT, along with the myriad blue caridina (TB and tiger) morphs, meaning there can be A LOT of confusing, mislabelled, misnamed shrimp out there.

This is easily the best explanation that I have received on this topic. Do you have any resources that I can read on the genetics of the shrimp or just more in depth guides? I have torn apart most if not all of the primary websites and resources from Reddit and planet inverts.

Unfortunately, there hasn't been much legitimate scientific work done on Neocaridina, especially in relation to their pigment genes and inheritance patterns. Most of what is out there is papers on their anatomy and how they make good models for certain studies of molecular mechanisms. Most of what the information you get is anecdotal and through independent (hobbyist) experimentation; this is no different. So, you can take it with a grain of salt if you'd like, but I am certain my info is valid as I have seen a lot of it proven time and time again and many of the members here can verify with their experiences and maybe give a little more info. I hope that the lab I work at, although it is a marine lab, will allow me to do a bit of work on these topics in a legitimate scientific setting soon. Especially since it would be relatively inexpensive and easy.

If you had the time or had a couple of jornal titles i would love to read them. Once again thank you for your time and in depth explanation on the matter, you have elucidated a number of questions that i have had, i guess i can base a lot of my understanding off of trends of esteemed posters here, i just didnt want to take their word as gospel without any backing.

Mr. F will be doing us all a HUGE favor looking for color genes for neos. We will still have the challenge of people selling phenotypes instead of genotypes, but this will give a much better understanding when crossing "pure bred" neos, and creating new variants.

You're very welcome, and you should be cautious taking advice. Most of us individually know what we're talking about for the most part, especially in certain areas (like blue neo lineage are one of my specialties), but as a collective community I think we've got a much greater knowledge base on ornamental shrimp than anywhere else (maybe except one or two).

I'm hoping to get a minION sequencer sent over from an advisor of mine so I can compare the color genes from each variation of neo finally ending this color debate once and for all. However, this will take some time (once I finally get the sequencer).

I'll send you over some papers when I have some time, I'm on vacation for my bday right now!

To be honest I have know idea if those Neo charts are accurate. I bought what was told to me as simply new blue shrimp a few years ago. I ve had this bunches for I couldn't even guess how many generations now. I get light blue, dark blue, rilli patterns, greenish blue, dark black and blue, brownish blue. So honestly I have no idea. I don't cull or do any selective breeding I just let them do there thing. As you can see below the hodge poge I get.

To be honest I have know idea if those Neo charts are accurate. I bought what was told to me as simply new blue shrimp a few years ago. I ve had this bunches for I couldn't even guess how many generations now. I get light blue, dark blue, rilli patterns, greenish blue, dark black and blue, brownish blue. So honestly I have no idea. I don't cull or do any selective breeding I just let them do there thing.

I have some carbon rilis too, and they display a lot of variety, which I love. Some have clear flesh, others are blue fleshed, a few females have gold stripes, and a couple are almost solid black/dark blue. Their colors intensify when they are kept on black substrate, but you sometimes have to work to find them. I think they look best when they are back lit, since it makes their colors pop. Their eggs are usually a dark olive green. Among my most recent batch of babies, I found an orange/red baby. I hope it survives to adulthood.

If blue velvet comes from red, and Carbon is carbon, is it possible that my female bv and male cr produced offsprings of more Carbon Rili because it happened. I see 5 cling on plants/ the tank walls and they have clear markings of dark head and dark tail but clear body. A friend told me blue velvet that comes from rili would have all the rili genes and I just got more confused :/ Thoughts?

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