Please help if you can :(. I just brought home a delta tail male betta from Petco. I used a water conditioner on my well water, waited three-four hours, and then added the betta and the water from his tiny cup into the new container. Since then he has been:
-listless-no interest in food
-either perched at the top of the tank or just sitting on the bottom
-when he's perched at the top, his tail droops down
-seems to be breathing heavily
I currently have him in a small terrarium, less than a gallon with sand on the bottom to see if he has an bowel movements. I don't think it's swim bladder disease because he has no bloating or arched spine. Aside from getting a Ph kit, which I intend to do tomorrow, would it be worth getting an airstone for that small of space?
I'm afraid to invest in a large tank with a heater, filter, etc. until I know he's doing better. Is it wiser to wait and use this smaller space as a hospital bowl?
I do currently have a female next to him in the same room using the same water who is a lot more active and flaring etc. After reading the forums, I was afraid it was the water quality so I did a 30 % partial water change using distilled water that had been in the same room as the fish.
If anyone can help me it would be extremely amazing :(. I should mention when he was in his stupidly-small cup at the store, he was at the top of the cup with his tail drooping down. I thought he might have just needed more room to perk up, but he's still very listless in a bigger container.