๐Ÿ  Fish Compatibility Guide

Can Ember Tetra and Guppy Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โš ๏ธ Use Caution โ€” Compatibility Score: 65/100
65/100 โ€” Use Caution

Ember Tetra and Guppy Compatibility Overview

Ember Tetra and Guppy can potentially coexist, but the combination requires careful attention. Their usable pH overlap is narrow and requires stable, tested water. A larger tank (minimum 20 gallons), dense planting, and close monitoring are essential.

Compatibility factors for Ember Tetra and Guppy
FactorEmber TetraGuppyVerdict
Temperature73โ€“84ยฐF72โ€“82ยฐFโœ… 73โ€“82ยฐF
pH Range5.5โ€“7.06.8โ€“8.5โš ๏ธ 6.8โ€“7.0 (narrow)
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size0.8 in2.5 inโš ๏ธ 3.1ร— difference
Min. Group8+3+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.

Caution Points

Their usable pH overlap is narrow and requires stable, tested water.

Species Profiles

Ember Tetra โ€” Hyphessobrycon amandae

Ember Tetra and Guppy compatibility โ€” Ember Tetra

Tiny orange-red schooling tetra that is among the most adaptable nano fish. Peaceful with everything too small to eat them.

โ†’ Full Ember Tetra care guide

Guppy โ€” Poecilia reticulata

Ember Tetra and Guppy 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

Frequently Asked Questions

Can Ember Tetra live with Guppy?

With significant caution and a larger tank. Ember Tetra and Guppy can potentially coexist, but the combination requires careful attention. Their usable pH overlap is narrow and requires stable, tested water. A larger tank (minimum 20 gallons), dense planting, and close monitoring are essential.

What tank size do I need for Ember Tetra and Guppy together?

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

What temperature suits both Ember Tetra and Guppy?

73โ€“82ยฐF โ€” inside Ember Tetra's 73โ€“84ยฐF and Guppy's 72โ€“82ยฐF.

Is a Ember Tetra aggressive toward a Guppy?

Ember Tetra is peaceful and Guppy is peaceful. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Ember Tetra and Guppy

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 setup55 galBest when keeping larger schools or reducing territorial pressure.