Guppies compatibility guide. 7 compatible tankmates + 5 species to avoid + temperament + size + water-chemistry guidance.
Same family + temperament. Schools peacefully alongside guppies.
Slightly larger livebearer, similar care needs.
Tiny relative; safe but they hybridize with guppies.
Bottom dweller, peaceful.
Adults safe; shrimp fry may be eaten.
Tiny algae eater.
Peaceful schoolers, similar size.
Fin nippers. Will tear guppy tails.
Eat guppy fry + sometimes adults.
Aggressive territorial behavior.
Eat guppies.
Some are aggressive; outcompete guppies.
Use the stocking calculator to verify your specific plan. Browse stocking ideas by tank size for proven setups, or read the Guppies care guide for full husbandry details.
Browse all tankmate guides.