I recently had a veil tailed betta I was very attacked to. Unfortunately he died from what I believe was rot tail and I decided to up my aquarium standards before my next betta. I now have what I believe to be a young king crowntail betta named Sushi. (he's no bigger than 3 inches or so) and wanted to ask if my aquarium is set up correctly for my new fish's longevity.
I have a 2.5 gallon tank with a filter, gravel, a light I keep on for no more than 4 or 5 hours at a time and some fake plants. His water is constantly fluctuating between 76-82 degrees. When changing his water I add half a teaspoon of the zyme (the thing that makes tap water safe) and about a quarter teaspoon of the stress coat. Lastly I throw in about 3/4 to a full teaspoon of aquarium salt. Is this more or less a correct set up or am I setting him up for something horrible?
Also just to throw in I notice that he likes to hide behind the filter. Is this normal? In order to feed him I usually have to remove the filter temporarily just so he can see the food. He eats with no problems and swims around occasionally but likes to spend about 75% of his time hiding behind the filter in the corner. Just wanna make sure my little buddy isn't already showing symptoms of anything.
Apologies for the lengthy post and thanks in advance for any feedback at all.