Guppy vs Otocinclus

Side-by-side care comparison to help you choose.

GuppyOtocinclus
DifficultyBeginnerIntermediate
Adult size1.5-2.5 inches1.5-2 inches
Lifespan2-3 years3-5 years
Min tank size10 gallons10 gallons
Water temp74-82°F72-78°F
pH6.8-7.86.5-7.5
Temperamentpeacefulpeaceful
Tank matesOther peaceful community fish like tetras, rasboras, corydoras, mollies, and platies.Small peaceful fish such as tetras, rasboras, and dwarf cichlids.
DietOmnivorous; feed high-quality flake food daily, supplemented with live or frozen foods like brine shrimp or daphnia 2-3 times per week.Primarily herbivorous; feed algae wafers, blanched vegetables (zucchini, spinach), and ensure natural algae growth. Feed once daily, small amounts.