I got 2 New wolf fish. One red, one mal. Both in seperate tanks.... And both of them arent eating. I have rosey minnows swimming around in the Red wolf fish, and 2 feeder golds in the Mal's. I had gotten them wednesday... Water is 0 ammonia, 0 nitrite, and 5-10 ish in nitrate... am i just being paranoid because of a recent big loss of fish? or is there really something wrong?