I hope someone sees this futher question. They are not recognizing anything I am putting the the tank. The are trying to eat algae off the tank and gravel and ignoring the cucumbers and wafers. How long will they be ok without getting much food except by accident? Not sure what the previous person ...

I just got 3 baby albino bristlenose at an aquarium society meeting. They are about 1 inch. What do I feed them? They are trying to eat algae off the sides of the tank but it is a new tank. What do I do? Thanks!