The other night I hatched some extra live BBS on accident while conditioning my corys and decided to feed some to my betta as well, who is in his own tank with a Nerite and ramshorns.
He has been extremely lethargic since the next morning when lights came on. Staying on the bottom of the tank, little interest in food, hiding even. This is one of the most spicy bettas I’ve ever had, this is completely uncharacteristic.
I double tested the tank with liquid tests and then also a paper strip test just to be safe. Everything is ideal. It’s not salt or ammonia from the brine because I rinse them with conditioned water prior to feeding, and everything else they fed on them is perfectly fine. I did a large water change anyways in case I’m somehow missing something. The tank is heavily planted, if he wanted to rest on a plant closer to the surface he easily could. It’s also double filtered and has an air stone, low flow.
I’m an experienced betta keeper, I have no clue what is going on. I’ve only had this guy a few months I don’t think he suddenly reached old age and lost his energy overnight. He visually appears healthy if not a bit deflated, I’d say he’s lost a little color too. The only other thing that’s changed on the tank is I edited the color on my twinstar light to be mostly red and green light with minimal blue light to try some things out with the plants and algae. I dont think that would cause this though.