Sponge filters are a great tool for younger afros. Or sand substrate with live blackworms so they can continuously sift for food as needed. They eat small amounts constantly, high metabolism when young.
I found the sponge filters have all of the flake and food debris stick to the surface, then they just pick it off as needed. I'd leave extra food on the filter (clean them regularly) didn't take the afro long to figure it out.
Great fish. Loved mine dearly, they make awesome cleanup fish to pair with messy eaters.