๐Ÿ  Fish Compatibility Guide

Can Lemon Tetra and Royal Gramma Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โŒ Not Compatible โ€” Compatibility Score: 0/100
0/100 โ€” Not Compatible

Lemon Tetra and Royal Gramma Compatibility Overview

Lemon Tetra and Royal Gramma are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Lemon Tetra wants 5.0โ€“7.5 and Royal Gramma wants 8.1โ€“8.4. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Lemon Tetra and Royal Gramma
FactorLemon TetraRoyal GrammaVerdict
Temperature68โ€“82ยฐF72โ€“82ยฐFโœ… 72โ€“82ยฐF
pH Range5.0โ€“7.58.1โ€“8.4โŒ No overlap
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size1.6 in3.0 inโœ… Similar
Min. Group8+1+See below
Min. Tank Size20 gallons (for both species)โ€”

Compatibility Positives

A stable shared temperature range is available.
Temperament risk is relatively low when normal group sizes are maintained.

Incompatibility Reasons

One of these is a marine species and the other is not; they cannot share one aquarium.
Their pH ranges do not meet: Lemon Tetra wants 5.0โ€“7.5 and Royal Gramma wants 8.1โ€“8.4.

Species Profiles

Lemon Tetra โ€” Hyphessobrycon pulchripinnis

Lemon Tetra and Royal Gramma compatibility โ€” Lemon Tetra

The Lemon Tetra is a vibrant, peaceful addition to freshwater tanks. Known for its striking yellow and red colors, it is well-suited for community tanks. They are active swimmers and thrive in groups. Maintaining stable water conditions is key to their health.

โ†’ Full Lemon Tetra care guide

Royal Gramma โ€” Gramma loreto

Lemon Tetra and Royal Gramma compatibility โ€” Royal Gramma

The Royal Gramma, known for its vibrant blue coloration, is a popular saltwater fish among beginners and experienced aquarists alike. It requires a well-maintained tank with plenty of swimming space and a moderate current. With a peaceful temperament and a relatively easy care routine, the Royal Gramma can be a great addition to a community tank.

โ†’ Full Royal Gramma care guide

Frequently Asked Questions

Can Lemon Tetra live with Royal Gramma?

Generally not recommended. Lemon Tetra and Royal Gramma are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Lemon Tetra wants 5.0โ€“7.5 and Royal Gramma wants 8.1โ€“8.4. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Lemon Tetra and Royal Gramma together?

A minimum of 20 gallons is recommended for keeping Lemon Tetra and Royal Gramma together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Lemon Tetra and Royal Gramma?

72โ€“82ยฐF โ€” inside Lemon Tetra's 68โ€“82ยฐF and Royal Gramma's 72โ€“82ยฐF.

Is a Lemon Tetra aggressive toward a Royal Gramma?

Lemon Tetra is peaceful and Royal Gramma is semi. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Lemon Tetra and Royal Gramma

Use the scenario that matches the actual group sizes and temperament you plan to keep.

ScenarioTankWhen it applies
Minimum viable30 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community55 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup75 galBest when keeping larger schools or reducing territorial pressure.