I have 2 leopard bush fish in a 30 gallon tank. One is around an 1 1/2" and the other is 2". I noticed the other day that the 2" leopard bush fish was acting alittle weird when i was feeding them but he was eating and i didnt see anything wrong with him at the time. I just noticed today that my "2 inch leopard bush fish had a red streak on his fin and both his fins were alittle messed up. I did some research and it sounds like amonia poisoning. My amonia is alittle above .25 and my nitrates are below 20. What do you guys think. Thanks