I currently have 6 discus in my 250ltr tank, 2 of them are around 8 inches the other 4 are about 4-5 inches.
A few days ago I noticed one of the smaller ones was very dark in colour it then seemed to freak out dashing all around the tank in a panic nearly jumping out of the water./ After this episode the fish looked dead as it fell to the bottom of the tank. The fish has stopped eating and now just hides in the corner and every so often repeats this behaviour. I have now noticed another one of the smaller discus is doing the exact same thing,
Is this behaviour a symptom of some disease or illness? Any help advice appreciated
A few days ago I noticed one of the smaller ones was very dark in colour it then seemed to freak out dashing all around the tank in a panic nearly jumping out of the water./ After this episode the fish looked dead as it fell to the bottom of the tank. The fish has stopped eating and now just hides in the corner and every so often repeats this behaviour. I have now noticed another one of the smaller discus is doing the exact same thing,
Is this behaviour a symptom of some disease or illness? Any help advice appreciated