Howdy, on my sons birthday he was given a dragon goby. I do not know very much about them, so because he was in a fresh water tank at the store where he was purchased I put him in the tank with my wintering pond fish. So far I have learned that he needs brackish water, but I need to get him his own tank. I was going to add the salt to the tank, but I don't know how the pond fish would deal with that. I am also concerned that he may not be eating well. I feed him thawed shrimp brine and he does chase at it, but I think the pond fish may be eating it as well. I feed the other fish first in a hope that they will be to busy to notice the other food and the goby will have a better chance to get the shrimp. Any suggestions?