[MOsborne05]

I might end up giving my 2 CPDs to a friend of mine who already has 6 of them, and possible selling the ember tetras to a friend who has been looking for them but can't find them in her area.

I understand that the CRS are difficult to keep, and I did a lot of research on them before I purchased them. I had been breeding RCS shrimp for awhile, and sold off most of my stock about a year ago. I decided to get back into RCS because there is a high demand for them around here, and I love keeping inverts.

I'm thinking that I should keep the CRS and some cherry shrimp in the 38 gallon, with any guppy fry that I get. I normally use sponge filters on my shrimp tank, but wouldn't 38 gallons be too large to use a sponge filter? I have a large bio-wheel hob filter as well, that I could cover the intake so that I don't suck up any baby shrimp, would that work? I also have an RO/DI unit so I would be using mostly RO/DI water for the tanks. Other than that, what makes a CRS tank more expensive to keep?

I would definitely like to keep my shrimp spread out amongst a few tanks though, just in case I have a tank crash or heater malfunction. I don't want to lose my entire batch.