I used to have a beautiful 15 gallon recreational tank, but sadly I am down to only 1 fish...and I fear death is near for him too. For almost a year on and off I thought I had reoccurring bouts of ich. Symptoms appeared to fit and treatment with Malachite Green helped. Unfortunately, it kept coming back after a while and with each bout, 2-3 fish would die suddenly.
2 days ago, I lost my "super" neon tetra. I call him "super" because he continually made it through each bout with no symptoms (the only one who never got sick when everyone else was affected) despite neons are supposed to be a "sensitive" fish. I had him for over a year. With each bout, I never replaced the fish that died, so over time my population reduced.Treatment was always done for a week past symptoms. Carbon filter removed during treatment. 25% water change after treatment. Fish then did well until the next bout which seemed to occur 1-2 months later.
Now, only my cherry barb remains...however...it is very sick and I am not sure what to do. See picture below. (sorry for the blurr...he doen't hold very still...the white is NOT a blurr..its the "fuzz")This white "fuzz" is the worse I've ever seen with my fish and suddenly developed this bad within 24 hours. The fuzz in notable in the photo on his body...it is also around his lips and all fins. I did not feed him yesterday, but today he eagerly ate. He is obviously stressed and rubbing on tank decor. I do not believe this is ich....probably never was. I've heard of Columnaris....does this sound familiar to anyone? Any other ideas? Please...any advise would be greatly appreciated...so that I can hopefully save my last fish.
15 gallon, 20 gallon Whisper filter. Tank has been well cycled and relatively stable with conditions for 1 1/2 years. Currently only 1 cherry barb remaining. Past month there was also a neon tetra until it died 2 days ago. nitrates/nitrites 0.00ppm (slight temporary flux during water change), pH 7.6, temp 76 F, lighting by bulb only (no natural light hits tank)...lighting is on a timer to equal same day/night cycle. Feed premium flakes very small amount every other day. Aquarium salt used for health...only added (small amount over a few hours to control ammonia spike potential) after every 10th water change. Water change done weekly 1/10th. Plenty of artificial plants and rocks to hide and play.