So, I have this very nice looking half moon betta (King) that acts totally normal - swims, eats well, etc. The problem is his tail is splitting.
He is in a 5 gal. cycled tank with heat (a steady 80 - 81 degrees), filter, plants (both real & silk). Also a piece of IAL.
I have heard that half moons are VERY sensitive to water quality so I have been doing 2 50% water changes a week with gravel vac - all to no avail.
This morning I thought maybe the filter is responsible for the tail damage even though it is a VERY gentle filter (Whisper Internal 1 - 3 gal.) so I unplugged it & put the sponge in a different filter to keep the "good" guys alive. I just checked on him and he has blown a bubble nest - the first since I have had him!!!
So, should I just forgo the filter for him? And, if so, how many water changes a week?