Thanks Veritas! I know CPDs are recommended at 6+ (same with the pygmies). Have you noticed an optimum school size for these guys, or is it more the better if its within the stock limits?
Bump: Also, not sure if its too coarse for the pygmy barbels, but any luck with them on Eco-Complete (or similiar type of substrate)? I haven't scaped yet, but that's what I have on hand.