I have a community tank of gouramis, zebra danios, german blue rams, black phantom tetras, guppies, platties,a BN plec and amano shrimp. I feed mine plec wafers, peas, courgettes, peppers, cucumber, sweet potatoes, bananas, flake food, frozen blood worms & daphnia, crab pellets, raw minced beef, cooked or raw prawn and tuna from my sandwich!!
Try everything and anything, they will soon let you know the score - they are all individuals and some will gobble it up and some wont!