You're betta will tell you too...if he is slow, pale, or not eating, he is unhappy. Mine likes a temp of 80ish for minimum. I would suggest using pellets as a base, then add the other stuff as treats. My betta loves bloodworms(fish flakes, brine shrimp, tubifex worms, and peeled peas) in fact he trolls the tank until all the food is gone. Don't overfeed- it is really easy.
I had a nearly white one, with blue and red on his cheeks, who'd go completely pale if something was wrong, especially during water changes- temp, pH, etc. He even reminded me once that I had forgotten to condition the water. They are very cool like that. You know when something is up.
My betta likes to chew his tail. I haven't read too much on it, I assume it is stress, but if you notice his tail getting shorter. that is my helpful info that you probably won't read elsewhere.
My fish hobby started too with one betta, and now I have 3 tanks. they're addictive. Enjoy your fish! They have great personality.
lisa
