Hey all, I’m trying to determine if my Betta has fin rot. His dorsal fin appears to be deteriorating and has a fuzzy texture, however the tips don’t seem to be effected. I’ve had him for 6 months and he’s in a heavily planted 7 gallon tank by himself. I do water changes and testing using the API master kit every 2 weeks and haven’t had any issues with water parameters, which are below. I showed a pic to the folks at my local fish shop and they said they thought it was due to color change, so not sure what to think. Thanks in advance!
pH - 7.8
Nitrates - 0
Hardness - Around 35
Nitrite - 0
Ammonia - 0
KH/Buffer - 40
Water Temperature - 79