[Proud Texan]

Ok ive had my tank for over a year.... now i just had a bicoler blenny die and now my copper band butterfly fish is in the corner breathing heavily.

The symptoms in the blenny where: Color Loss/ cloudy eyes/ heavy breathing/ scrathing on the sand.

The only symptom i can see in the copper band is heavy breathing.

I tested the water 3 days ago and
Ammonia:0
Nitrite:0
Nitrate:0
Ph:8.3

I will test again if need be but right now this looks like a parasite to me...