I'm 100% sure I have 1 true Siamese Algae Eater and 4 Otocinclus Affinis.
The Siamese Algae eater is fed mostly flake food, with supplements of freeze dried bloodworm, algae wafer, and shrimp pellets. Once a week I give them zucchini. The Otocinclus eat mostly algae from around the tank...