i feed my fish every other days, except my little bichir i feed them twice every day until they get to a certain size then i'll switch to every other day also
i feed my community planted tank and my ray/bichir tank twice a day. my gulper catfish are brand new so their not eating on a regular basis.. but i probably will feed them about 2-3 times a week.
I got some tanks that require 3 times a day (Fry tanks) And my Oscar tanks once a day. And the Bichir tank every other day lol... I don't know how I keep track of all their different setups.