i have 4 of these in a heavily planted tank. since i rarely see them in there, i never bother to check if they're eating. i never see them eat at all even if they're out during feeding time. all other fishes are going nuts over the food but the badis just looks at them. didn't even try to taste it but they've been in my tank for almost a year now so i guess they're eating something else that they can find in the tank.
i feed my fishes all kinds of food. flakes, live, pellets, frozen and the dry cube tubifex worms. badis ignores all of them.