Ok, maybe I'm not explaining this correctly. I don't believe the issue is the tank not being cycled. This isn't my first aquarium and I have pretty extensive knowledge on how to manage water quality and cycle a tank. The tank cycled for exactly 3 1/2 weeks with stability before the ray going in. I've continued to use stability with every water change, every day. I don't use ammo lock every day, it's there for worse case scenario emergency or I have reason to believe I need another protective measure at that exact moment..(the bottle is still full). I keep his tank clean, any solids are removed quickly. During the first week of having the ray my nitrate and ammonia never left the safe zone, but did slightly fluctuate. It's been 3 additional weeks and there has been no detection of of ammonia, nitrite, or nitrate. I use an API freshwater test kit and strips to double check. The ray was acting fine. A week ago I noticed white fungus on his barb, I called the place I got it from and they recommended pimafix. They told me fungus on the barb was a common issue. That seemed to work, the fungus went away in less than a day and since has shed his barb. However, he is hanging out a lot more by the filter and I'm a little concerned by that action. He still swims around, clings to the side of the tank, and begs for food. The tank has ample aeration. It just seems odd, I did move the pump recently and that was when he started hanging around it. Has anyone else has this similar issue?