Hey all. My betta is looking a little green around the gills these days. He's been showing signs of swim bladder disorder (floating near the top of the tank) as well as abdominal swelling for about a week and a half now. I've reduced the feedings to two Hikari pellets per day, but it doesn't seem to be helping. I just attempted to feed him, but he showed no interest in the food until I indicated it with my hand (I've trained him to follow my hand to where food is, but he doesn't usually need help to find it). He ate fine this morning. He's showing large bursts of activity followed by periods of lethargy. He was bashing the walls of his tank, as well as the gravel. The swelling on his abdomen is just below his pectoral fins, and there's another area of swelling about 3mm rostral from his caudal fin. He does not show the "pinecone" scaling associated with dropsy, these are just minor swellings without any raised scales. When he swims, he tends to float towards his left side (where the swelling on his side is).
I do not have a water testing kit. He is in a 2 gallon hex with a Tetra Whisper 3i filter. There are also four Blue Bell plants, which also help to keep the water clean. I just medicated his water with a "Betta Revive Health Aid" that consists of the following:
Water, neomycin sulfate (<10%), methylene blue (<0.5%), proprietary polymer mixture, buffers, EDTA, malachite green chloride (<0.01%), cyanocobalamin, and electrolytes.
It's supposed to prevent and control bacterial, protozoan, and fungal things, so it should help to treat any of those. I'm turning the filter off overnight so the medicine can circulate and take effect. What else should I be doing to help the little guy recover? Any idea what the swelling might be caused by?
While I was typing this out, he started becoming a bit more active, but he's still having difficulty swimming. He's started following my hand again since I treated the water, and he's doing little circles in his tank, which is completely normal behavior for him. He's gone behind the filter for now (that's where he usually sleeps at night) but I'm still worried about the little guy.