PayaraMan;4507987; said:My little American datnoid is scared crap less by him after being the biggest one in the tank until now, And the SD's are very peaceful and I never see anybody picking on him.
Have you sat down and jsut watched him from a distance? if so, did his breathing slow down at all? he could be scared of you, so he would be breathing hard.
i still would buy my own test kit so i could test the water myself.
Does he have any hiding spots? Is there a lot of activity around the tank?