I have a 30c cube that has a full carpet HC, pressurized Co2, 36w light, eheim 2213 filter, and a UV sterilizer. I also have 2 ottos and 2 nerite snails. How many CPD's do you think I can stock in here??
CPD's are not jumpers - and yes, you could readily do 10 to 12 in your tank - where they won't get a hell of a lot bigger than 1" to 1.25", if that - and as they age, you may know this, their coloration gets sharper and darker - they turn out just beautiful when you give them enough time in the same tank to get real comfortable - so they stop shying away & hiding. I just love them - have 8 of them in a 10 gallon with a few ember tetras, some boraras brigittae, and a bunch of fire red shrimp - love the tank !