FishTankCan goldfish live with neon tetras?
No, they don't mix. Goldfish need cool water and grow big and messy. Keep them with other goldfish, not tropical fish. Goldfish eat anything that fits in their mouth.
No
Verdict
72–72°F
Shared temperature
30 gal
Smallest tank
The two fish side by side
| Fish | Adult size | Temperature | Min. tank | Keep | Watch for |
|---|---|---|---|---|---|
| Fancy goldfish | 7 in | 65–72°F | 30 gal | Alone or as a pair | eats small fish, cool water |
| Neon tetra | 1.5 in | 72–80°F | 10 gal | 6 or more | peaceful |
If they are already together
- Separate them as soon as you can. A tank divider works for a few days while you set up a second tank or find a new home.
- Watch for torn fins, hiding and missing fish. Treat any damaged fins with clean water. See fin rot.
- Pick a new tankmate from the lists below.
Good tankmates instead
- For goldfish: Common goldfish, Mystery snail
- For neon tetras: Betta (male), Cherry shrimp, Dwarf gourami, Guppy, Amano shrimp, Black skirt tetra
Want to check a whole tank? Pick up to 8 fish in the fish compatibility checker, which opens with this pair already filled in.
Planning a whole tank? Your First Aquarium includes ready-made stocking plans and care cards for 15 beginner fish. Get the guide for $12
More tankmate questions: Can bettas live with neon tetras? · Can bettas live with goldfish? · Can angelfish live with neon tetras? · Can goldfish live with guppies? · All tankmate guides
Related: Fancy goldfish care · Neon tetra care · Fish compatibility checker · Fish care sheets