๐Ÿ  Fish Compatibility Guide

Can Clown Pleco 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

Clown Pleco and Royal Gramma Compatibility Overview

Clown Pleco 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: Clown Pleco wants 6.5โ€“7.8 and Royal Gramma wants 8.1โ€“8.4. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Clown Pleco and Royal Gramma
FactorClown PlecoRoyal GrammaVerdict
Temperature73โ€“82ยฐF72โ€“82ยฐFโœ… 73โ€“82ยฐF
pH Range6.5โ€“7.88.1โ€“8.4โŒ No overlap
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size3.5 in3.0 inโœ… Similar
Min. Group1+1+See below
Min. Tank Size29 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: Clown Pleco wants 6.5โ€“7.8 and Royal Gramma wants 8.1โ€“8.4.

Species Profiles

Clown Pleco โ€” Panaqolus maccus

Clown Pleco and Royal Gramma compatibility โ€” Clown Pleco

The Clown Pleco is a popular freshwater fish known for its dark brown body with light spots and long, flattened body shape. They are peaceful and make great community fish for beginners. These plecos are moderate in activity level and prefer a tank with plenty of hiding spots.

โ†’ Full Clown Pleco care guide

Royal Gramma โ€” Gramma loreto

Clown Pleco 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 Clown Pleco live with Royal Gramma?

Generally not recommended. Clown Pleco 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: Clown Pleco wants 6.5โ€“7.8 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 Clown Pleco and Royal Gramma together?

A minimum of 29 gallons is recommended for keeping Clown Pleco and Royal Gramma together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Clown Pleco and Royal Gramma?

73โ€“82ยฐF โ€” inside Clown Pleco's 73โ€“82ยฐF and Royal Gramma's 72โ€“82ยฐF.

Is a Clown Pleco aggressive toward a Royal Gramma?

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

Related Compatibility Guides

Tank Size for Clown Pleco 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 setup55 galBest when keeping larger schools or reducing territorial pressure.