Choose a quality pellet and stick with that...... Or, feed pellet and flake on alternate days to each other.
Thanks alot for info mate, ill try the vets asap. How much food do you recomend to feed my fish? With flakes and pellets? I think i might try once a day for 30-seconds to 1 minute
When you feel comfortable with knowing how much to feed, then start combining.
It's important not to forget to miss one day a week of feeding.
This allows beneficial bacteria in bio filter to play catch up as well as allowing fishes systems to purge.
I myself as a display and breeder, keeper practice controlling my fishes belly mass to thin down one week then increase, (but not round) the next,,,, and so on.
Depending on your house hold,, only you should have access to the fish food.... Hah ha... Other wise you might get what I call phantom feeding..... The misus... The kids.... They don't understand....