Hi, so my male crowntail is suddenly lethargic and refusing to eat. I've have him for at least six months, so it's not that he's new. I do water changes constantly, really at least 10% every other day (I have a problem, I know). Live plants include anacharis, anubias, java fern, pothos, and a bit of micro sword floating around. I tried twice to keep ghost shrimp in the past month, but it didn't work out. Does that change anything? I took the bodies out before any proper decomposition happened. I haven't had any other deaths in the tank at the time. I've had the tank up since September, so it's cycled and stable. About two weeks ago I did the second treatment for Camellanus worms. After the first treatment I haven't seen any signs of the darned things, and Chili never showed any symptoms either. I treated the entire tank with Levamisole HCI. The cycle was unaffected as Levamisole is safe for bacteria. Before you say he's showing stress due to another betta in there, Royal (the Halfmoon) has been kept in a breeding net and Chili has shown very little interest in him. They flared at first, then Chili calmed down and completely ignored Royal. Aquarium Size: Ten gallons Fish, Plants, Inverts, etc: Two female platys Twelve fry, 3-5 months 2.5" male bristlenose pleco Male halfmoon betta (Kept in a breeding net) Male Crowntail betta Aquarium Start Date Started it in August, but really only got going in late September after a bout of velvet :T Ammonia: 0 Nitrite: 0 Nitrate: 5 Temperature: 78F pH: 8.2 Aquarium Filter Type Tetra Whisper 360 I'd really appreciate any help possible. I love my little Chili and I'd do anything I can to save him!