Hi,
I have three fish (one oranda, one fantail, one bristlenose) in a 29 gallon tank. I did a quick dip test and there is nothing wrong with my water. I change it one time a week on average. The tank has been set up for maybe three months. I have a Top Fin power filter 30 with a bio 3 filter cartrige. I put StressZyme. Stress coat and aquar salt in my tank when I do a water change. This morning I noticed they (2 goldies) were hanging down at the bottom. They would both come up when I would approach the tank. This afternoon Tom is still hanging at the bottom and I noticed a brown spot by his gil area. I put one teaspoon of Melafix in the water and took out the filter.
I hope I have given all of the correct info. Can someone help me?
Stephani