I have had my betta for about 7 months, he's in a 8L filtered tank and I clean the water regularly (every 3 weeks or so) and also try to do a 50% change in between. I also have a heater set to 25C in the tank. In the months I have had Giovanni, he has had swim bladder and fin rot, which is really surprising because I am so so scrupulous about his cleanliness and hygiene.
I will admit I recently went through a period without doing a good clean for about 5-6 weeks because of work.
Anyway, it was then that I noticed this pink fuzzy layer on top of his rocks. I cleaned it out about a week ago thinking it was just food build up. But I noticed it again on Thursday, so in 4 days it came back and it is much worse than before. Giovanni also doesn't look the best, he has white spots on this fins and body, and I am worried he is going to get really sick and die
Anyone know what this could be?