๐Ÿ  Fish Compatibility Guide

Can Guppy and Pea Puffer Live Together?

Updated September 28, 2026 ยท FishCare AI Editorial Team

โŒ Not Compatible โ€” Compatibility Score: 18/100
18/100 โ€” Not Compatible

Guppy and Pea Puffer Compatibility Overview

Short answer: No. Pea puffers will aggressively nip guppy fins. Keep them in separate tanks, or pick one of the safer tank mates listed below.

Guppy and Pea Puffer are generally not recommended to be housed together. Pea puffers will aggressively nip guppy fins. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Guppy and Pea Puffer
FactorGuppyPea PufferVerdict
Temperature72โ€“82ยฐF74โ€“82ยฐFโœ… 74โ€“82ยฐF
pH Range6.8โ€“8.57.0โ€“8.0โœ… 7.0โ€“8.0
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size2.5 in1 inโš ๏ธ 2.5ร— difference
Min. Group3+1+See below
Min. Tank Size20 gallons (for both species)โ€”

Compatibility Positives

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

Incompatibility Reasons

Pea puffers will aggressively nip guppy fins.

Species Profiles

Guppy โ€” Poecilia reticulata

Guppy and Pea Puffer compatibility โ€” Guppy

Hardy and colourful livebearers. Males' long flowing tails make them targets for fin-nipping species. Very prolific breeders.

โ†’ Full Guppy care guide

Pea Puffer โ€” Carinotetraodon travancoricus

Guppy and Pea Puffer compatibility โ€” Pea Puffer

World's smallest pufferfish โ€” intensely territorial and nippy despite tiny size. Will attack fins and eat shrimp and snails.

โ†’ Full Pea Puffer care guide

Frequently Asked Questions

Can Guppy live with Pea Puffer?

Generally not recommended. Guppy and Pea Puffer are generally not recommended to be housed together. Pea puffers will aggressively nip guppy fins. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Guppy and Pea Puffer together?

A minimum of 20 gallons is recommended for keeping Guppy and Pea Puffer together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Guppy and Pea Puffer?

74โ€“82ยฐF โ€” inside Guppy's 72โ€“82ยฐF and Pea Puffer's 74โ€“82ยฐF.

Is a Guppy aggressive toward a Pea Puffer?

Pea puffers will aggressively nip guppy fins.

Safer Tank Mates for Guppy and Pea Puffer

The highest-scoring compatible partners for each species in our compatibility data.

For Guppy

For Pea Puffer

Related Compatibility Guides

Tank Size for Guppy and Pea Puffer

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

ScenarioTankWhen it applies
Minimum viable20 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community29 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup40 galBest when keeping larger schools or reducing territorial pressure.