Back to species
Species profile

Green Fire Tetra

Aphyocharax rathbuni

Green Fire Tetra (Aphyocharax rathbuni) is a schooling community species for a cycled 15+ gallon freshwater aquarium. Plan for about 1.6 inches as an adult, 72-80°F water, pH 6-7.5, and beginner-friendly care. Keep a group of at least 6; larger groups often behave more naturally when the tank has room.

Community leaningBeginner-friendly care
Green Fire Tetra, a community leaning 1.6 inch aquarium species for 15+ gallon tanks
15 galMinimum tank
1.6 inAdult size
6Schooling minimum
72-80°FTemperature

Water Range

pH
6-7.5
GH
2-15 dGH
KH
1-10 dKH

Behavior

Temperament
Peaceful
Fin nipping
0/5
Territory
0/5

Diet and Care

Diet
omnivore
Diet difficulty
1/5
Care difficulty
1/5

People also bought

Fish that pair well with Green Fire Tetra

These matches are starting points with overlapping water ranges and lower behavior risk. Always check the full stocking plan, tank size, and group counts before buying.

Can I keep this?

Run Green Fire Tetra through the checker with your tank size, cycle status, water, group count, and tankmates before buying.

Check my tank
Compare this species

Put Green Fire Tetra beside another profile to compare water range, size, diet, schooling needs, and behavior.

Open comparison
Will plants work?

Match Green Fire Tetra against aquarium plants for nibbling, uprooting, cover, flow, and water-range flags.

Open plant match
Ask about my setup

Ask Advisor how Green Fire Tetra fits with your current tank, recent logs, plants, and livestock.

Ask Advisor
View native range

Open the origins map to see reviewed native-range coordinates and regional context for Green Fire Tetra.

Open origins map
Aquarium guides

Read setup, cycling, stocking, and care guides before buying fish.

Browse blogs

From keepers

Loading…