I just recently moved my male betta Flame into his new 15 gallon planted tank. The only other inhabitants are 3 cory catfish, and they all get along great. Recently I noticed a fip in Flame's tail fin. Since then it has gotten much worse, and he also had a missing scale on his back.
The only thing that is wrong with the tank as far as I can tell, is that the water is a little cloudy, which I assume is from the plants, because I clean the gravel and do a water change once a week. This does not seem to bother the corys, but could the organic matter cause fin rot for Flame?
Should I move him back to his 5.5 gallon and medicate him? Would a water clarifier help the tank, or hurt the corys? Does anyone else have any experience with cloudy water in a new, planted tank? This is not caused by ammonia. I did a fishless cycle on the tank, and have added fish slowly. Since then, the tank constantly reads; ammonia 0, nitrite 0, nitrate 5, pH 7.6.
Please, if anyone could answer my questions I would be really grateful. This is my first planted tank, and I am very attached to my betta. He was a rescue.
Oh, one more thing. Before I moved Flame into his new home I noticed that some of the scales on his back were standing up. Not like dropsy, and only partly raised in a line of his back. What could this be, would this be related to the missing scale on his back?