I have 2 perculas, 1 green-banded goby, and 1 scooter dragon(though it should be in my 55g with all the little pods). The "dwarf" gobies are really cool. I had two green-banded till the female got sick and died before I could catch her. Take your time with this stuff and at the first sign of sickness, get all the fish out of the tank cause it rips through a 10g like you wouldn't believe. Just don't add too many fish too quick. Even with my 15-18# LR its still kinda touchy on the number of fish I have.