hi and thanks for reading my thread.
I've already made a post about the Betta i received as a gift 2 weeks ago, he hasn't eaten one bit of food.
but now I've noticed another problem, it appears that he's "coughing" his gills will convulse it seems and he'll cough out air bubbles, I do not believe this is him trying to make a bubble nest.
He spends most of his time laying on plants at the surface of the water with his nose facing up almost. Any idea what could be wrong?
-5.5 gallon tank
-no heater (man at fish specialty store said he didn't need one while sick?)
- water conditioned
- 75% water change every other day