I just got a new male crown tail from Walmart
And in the cup he was pretty jumpy, I kept him in the cup for 2 days until I got the tank all set up and filtered. He is in a 3 gallon, with a heater and a very gentle filter that is air powered, and he has 3 live plants and a Marimo (sp?) moss ball, and LED lights. The temperature is at 78 degrees.
I conditioned our filtered tap water, and took a whole day to slowly get him used to the temperature and water.
Ie noticed he is kind of "panting" (opening his gills and mouth) and he hasn't eaten anything since I got him.
I have offered him betta flakes, pellets, blood worms, some betta food with little shrimp in it, and mashed pea without the shell.
At first he was laying on the bottom of the tank and only moved if I "scared" him to make sure he was alive, or if he came up to get air. Now he is staying at the surface and only moves a tiny bit to get air, or if I check to make sure he is alive. The panting has slowed down, but this has been going on for 4 days. Anything else I can do.