So, you’ve discovered the joy of keeping guppies—awesome! These colorful little fish are tons of fun and super easygoing. But maybe you’re wondering which fish make the best tank mates. Choosing the right buddies for your guppies can seriously upgrade your aquarium and make watching your fish even more enjoyable. Let me share what I’ve learned about picking great companions for your guppies.

Friendly Community Fish
First things first, guppies are laid-back little fish, so they appreciate tank mates that match their easygoing vibe. You definitely want to avoid any bullies or aggressive fish that might stress them out or nip at their colorful tails.
One of my favorite pairings is guppies with neon tetras. Neon tetras are small, peaceful fish that love to hang out in groups. They’re bright, energetic, and mostly stick to the middle part of your tank, which pairs perfectly with guppies that tend to swim everywhere. Watching neons dart around with guppies is always a treat.
Another solid choice is platy fish. Platies have similar temperaments to guppies, are super colorful, and are easy to care for. They add lots of activity to your aquarium, and it’s fun to see them mingling with your guppies.

Bottom-Dwellers for Balance
Don’t overlook fish that live at the bottom of your tank! Since guppies generally hang out near the surface and middle of the tank, peaceful bottom-dwellers like cory catfish can balance things out nicely. Corys are cute little fish with whisker-like barbels that help them search for food. They also do a great job cleaning up leftover food bits, keeping your tank tidy.
I’d suggest keeping at least three corys because they enjoy each other’s company. They won’t bother your guppies at all, making them perfect roommates.
Otocinclus catfish, or “otos,” are another awesome choice. These tiny algae eaters stick close to tank walls and plants, quietly munching algae all day. They’re gentle, calm, and won’t bug your guppies. Plus, they’re excellent at naturally controlling algae growth.

Fun Extras: Snails and Shrimp
Looking to add a little more interest to your tank? Snails and shrimp can be fantastic additions. Nerite snails, mystery snails, and ramshorns are peaceful, fun to watch, and helpful—they eat algae and leftover food, keeping your tank cleaner. Plus, they come in cool colors and patterns.
Shrimp, especially cherry shrimp or ghost shrimp, are another interesting option. Cherry shrimp are bright red and add a cool splash of color, while ghost shrimp have that transparent look that makes them fascinating to watch. Just be cautious, as your guppies might occasionally snack on shrimp babies. So provide plenty of hiding spots if you’re raising shrimp.
Fish to Steer Clear Of
On the flip side, there are definitely fish you’ll want to avoid. Stay away from aggressive fish like cichlids (except maybe the peaceful dwarf types) or bettas. These fish often nip fins or chase smaller tank mates, which would stress out your guppies and create unnecessary tension.
Also, large fish usually aren’t suitable tank mates either. Even peaceful-looking fish like goldfish aren’t the best choice because they require different water conditions and might accidentally see smaller guppies as snacks.
Keeping Things Peaceful
A helpful tip: most small, community-friendly fish prefer being in groups. Whether you choose neon tetras, corys, otos, or danios, try to keep them in groups of at least six. They’ll be happier, more active, and their colors will pop more vividly.
Also, it’s crucial to avoid overcrowding your aquarium. Overcrowding can quickly lead to water quality issues and stressed-out fish. A good guideline to follow is about one inch of fish per gallon of water, but use your judgment—consider adult sizes and swimming habits to keep your tank balanced.
Maintaining Tank Harmony
Good water conditions are essential for keeping everyone happy and healthy. Regular water changes and tests help maintain excellent water quality. Trust me, your fish will be less stressed, healthier, and more colorful when they’re living in clean water.
Enjoying Your Community
One of the best parts of keeping guppies is mixing different species together and seeing how they interact. A peaceful, diverse community tank is both relaxing and fascinating to watch. Each species has its own quirks and personality, which makes every moment spent watching your tank entertaining.
Creating the perfect community isn’t complicated—just plan ahead, keep the environment stress-free, and enjoy the beauty of a well-balanced aquarium. Your guppies (and their new tank mates) will thank you with lively activity and stunning colors.
Happy fishkeeping, and have fun building your aquatic community!