Red, white and black mosquito larvae, brine shrimp, amphipods, krill, discus - granules, water fleas, Catfish chips, cucumber and peppers
For the Rays still specially smelt, clam meat, earthworms,
and what of the other sorts of feed falls
I've tried the roots mimic a riparian zone ... a tree whose root sticking into the water and is designed to provide the fish a natural shelter.
for me was the importance of a habitat as much as possible to mimic the fish to allow as far as welfare!