There is actually hiding from the gsps. The 30 is cycled... it went through a mini cycle a while back, but it has been stable for a while. Since the puffers are in the tank, im thinking of doing w/c every 2-3 days just to keep levels down until everyone gets to move into the big nice tank. and my bbgs nor have any ghost shrimp been eaten. my dragon doesn take any of their antics and will get them back if they try and nip him.