I just bought 2 tomato clowns yesterday and got them home and they where doing fine last night. this morning i woke up and one is swiming at the top of the water and will not come down, there is a white film over one eye and between the eyes. all my water conditions are fine. would this just be caused by stress and will he come out of it or should i use meds' or what. the pair that i bought were paired up so they did get along. any info on this would be great thanks.