 Because the red algae-eater is effective at controlling tank algae, many aquarists like to place them in heavily planted tanks with strong lighting to prevent the growth of algae.Unlike other aquarium algae eater fishes, the red algae-eater is valued for its ability to eat red algae (particularly Audouinella).The fish, however, is an opportunistic feeder and will eat pellets and most other food, a tendency that strengthens with age.