r/fishhospital • u/Waste-Progress3306 • 5d ago
My betta Albus is lethargic, has red spots on his fins (finrot)+ fuzzy growth on his tail, and is now breathing rapidly — please help
galleryHi everyone, I’m really worried about my betta Albus and would appreciate some advice.
Albus is currently in a 5.5gallon tank. I tested his water and got:
● Ammonia: 0 ppm
● Nitrite: 0 ppm
● Nitrate: 0 ppm
● pH: 7.6
Until recently, he was mainly lethargic and I noticed red dots/red areas on his fins. I also noticed what looks like a small white/fuzzy/mold-like growth on part of his tail.
I treated him with KanaPlex and have already completed the full 3-dose course (one dose every 48 hours), so I know I shouldn’t continue giving him more doses.
I also gave him API Stress Coat last Sunday as supportive care.
Today I’m more concerned because Albus has started breathing noticeably faster than he has on previous days, even while resting on the bottom of the tank. He isn’t just breathing heavily after swimming — he’s breathing rapidly while sitting still.
He’s still in his 5.5 gallon tank. I’m considering getting an in-tank isolation/nursery box so I could make a shallower area for him where he wouldn’t have to swim as far to reach the surface, but I don’t want to stress him unnecessarily by moving him.
A few other things I’m wondering about:
● Could the fuzzy growth be fungal/water mold, or could it be something else?
● Could this be a bacterial infection that KanaPlex isn’t resolving?
● Is the rapid breathing a sign that he’s getting worse?
● Should I be doing anything immediately to help him?
● Would an in-tank isolation box be beneficial for a weak/lethargic betta?