BradsOcean
Active member
I want to get like 6 green chromis for my 38 gallon tank because I have seen them in a school in other tanks but I heard that they need a predator to keep them in a school or else they will stay apart just like normal fish. Does anyone know of a predator or something that I can put in my tank to keep them in a school. I currently have 3 blue and yellow damsels and 2 percula clowns. I have heard that I cant add 6 chromis with the fish I have now because it will create too much bio load. If I take out the 3 damsels and at the same time add 3 chromis, and then a week later add 2 more chromis, will that be OK? thanks 