Ember Tetra tank mates
Ember tetra tank mates are nano math: tiny fish, dense plants, no gulp predators. The live engine marks cherry barbs, corydoras, dwarf and honey gouramis, glowlight and neon tetras, harlequin rasboras, and pygmy cories as usually safer company in a planted nano with eight or more embers. Bettas, discus, and tiger barbs sit in caution. Angelfish, green terrors, Jack Dempseys, and oscars are avoid. Keep the orange cloud as a real school — token numbers read as snacks, not a display.
Our first pick
Neon Tetra. Same softish midwater lane and school energy — a neon group matches embers without inventing a mouth-size problem. Run the pair check →
Common mistakeBuying six embers as a ‘pop of colour’ in a 60L is how the school disappears visually and socially. Ten or more with dense planting creates the orange cloud people paid for; six look like lost commas. Start the school first, then add calm nano neighbours — not gulp predators.
Each name below opens a pair check with Ember Tetra. That check is the decision, not the list itself.
Usually safer companions
Conservative shortlist from this profile. Open a pair page before you buy.
The Ember Tetra profile lists Cherry Barb as a recommended pairing. Cherry Barb schools in groups of 6 or more, so plan room for the whole group rather than one fish. Cherry Barb grows bigger than Ember Tetra (5cm vs 2cm). Stock the Ember Tetra group large enough to outnumber the Cherry Barb, or the smaller fish ends up bullied or off food.
The Ember Tetra profile lists Corydoras Catfish as both safe and a recommended pairing. Corydoras Catfish schools in groups of 6 or more, so plan room for the whole group rather than one fish. Corydoras Catfish grows bigger than Ember Tetra (6cm vs 2cm). Stock the Ember Tetra group large enough to outnumber the Corydoras Catfish, or the smaller fish ends up bullied or off food. Corydoras Catfish swims in the bottom zone while Ember Tetra stays in the middle, so the two will not crowd the same water column.
The Ember Tetra profile lists Dwarf Gourami as both safe and a recommended pairing. Dwarf Gourami grows bigger than Ember Tetra (8cm vs 2cm). Stock the Ember Tetra group large enough to outnumber the Dwarf Gourami, or the smaller fish ends up bullied or off food.
The Ember Tetra profile lists Glowlight Tetra as both safe and a recommended pairing. Glowlight Tetra schools in groups of 6 or more, so plan room for the whole group rather than one fish. Glowlight Tetra grows bigger than Ember Tetra (4cm vs 2cm). Stock the Ember Tetra group large enough to outnumber the Glowlight Tetra, or the smaller fish ends up bullied or off food.
The Ember Tetra profile lists Harlequin Rasbora as both safe and a recommended pairing. Harlequin Rasbora schools in groups of 6 or more, so plan room for the whole group rather than one fish. Harlequin Rasbora grows bigger than Ember Tetra (5cm vs 2cm). Stock the Ember Tetra group large enough to outnumber the Harlequin Rasbora, or the smaller fish ends up bullied or off food.
The Ember Tetra profile lists Honey Gourami as both safe and a recommended pairing. Honey Gourami grows bigger than Ember Tetra (6cm vs 2cm). Stock the Ember Tetra group large enough to outnumber the Honey Gourami, or the smaller fish ends up bullied or off food.
The Ember Tetra profile lists Neon Tetra as both safe and a recommended pairing. Neon Tetra schools in groups of 6 or more, so plan room for the whole group rather than one fish. Neon Tetra grows bigger than Ember Tetra (4cm vs 2cm). Stock the Ember Tetra group large enough to outnumber the Neon Tetra, or the smaller fish ends up bullied or off food.
The Ember Tetra profile lists Pygmy Corydoras as a recommended pairing. Pygmy Corydoras schools in groups of 6 or more, so plan room for the whole group rather than one fish.
Risky or situational
May work with more water, a mature system, or a species-only setup. Read the pair page before you experiment.
Betta is rated semi-aggressive, so expect chasing, fin damage, or display behaviour directed at Ember Tetra. Run the pair checker before stocking.
Temperature ranges barely overlap between the two, so one species ends up living at the edge of its comfort window. Run the pair checker before stocking.
Tiger Barb is rated semi-aggressive, so expect chasing, fin damage, or display behaviour directed at Ember Tetra. Run the pair checker before stocking.
Fish to avoid with Ember Tetra
Predation, aggression, or space rules on this profile. Treat these as poor default mixes.
Angelfish reaches 20cm and is flagged predatory. Ember Tetra at 2cm is prey-sized for it. Angelfish needs at least 150L, far above the 45L minimum for Ember Tetra. The tank that houses one stresses the other.
Green Terror reaches 30cm and is flagged predatory. Ember Tetra at 2cm is prey-sized for it. Green Terror needs at least 300L, far above the 45L minimum for Ember Tetra. The tank that houses one stresses the other. Green Terror is rated aggressive and Ember Tetra is rated peaceful. No community-style planning carries that gap.
Jack Dempsey reaches 25cm and is flagged predatory. Ember Tetra at 2cm is prey-sized for it. Jack Dempsey needs at least 200L, far above the 45L minimum for Ember Tetra. The tank that houses one stresses the other. Jack Dempsey is rated aggressive and Ember Tetra is rated peaceful. No community-style planning carries that gap.
Oscar reaches 35cm and is flagged predatory. Ember Tetra at 2cm is prey-sized for it. Oscar needs at least 300L, far above the 45L minimum for Ember Tetra. The tank that houses one stresses the other. Oscar is rated aggressive and Ember Tetra is rated peaceful. No community-style planning carries that gap.
Tank size and groups
- Published minimum for Ember Tetra: 45L. Group minimum 8 (schooling).
- Compatibility changes when the tank is too short for turning, too little for a real school, or too warm for one species and not the other. That is why pair checks include tank context, not only temperament.
- Nearest litre hub to this minimum: 60L hub.
Plan before you buy
Start a pair check with Ember Tetra, or open a starter plan with the top safer companions in the builder.
Tank hubs: 60L
Related reading
Guides that list other fish with the same trait, so you can plan around the group rather than one row.
- Schooling & group fish →
Plan the group of 8+ before choosing tank mates.
- Beginner-friendly freshwater fish →
Ember Tetra is on this list. Hardier options for a first stock.
- Peaceful community fish →
Other peaceful species to shortlist beside Ember Tetra.
Filtration & heating
A 45L minimum tank for Ember Tetra needs a filter rated for at least 180L/hr turnover and a heater maintaining 20–28°C.
Similar fish (same category)
- Neon Tetra · min 40L
- Beckford Pencilfish · min 60L
- Black Neon Tetra · min 60L
- Bloodfin tetra · min 60L
- Cardinal Tetra · min 60L
- Glowlight Tetra · min 60L
- Green neon tetra · min 60L
- Lemon Tetra · min 60L
Related (care + temperament)
Other species that list Ember Tetra
Reverse lookup: these profiles reference Ember Tetra under safe or “best with” lists.
Featured compatibility checks
Curated pair pages for Ember Tetra. Each opens a full verdict — not just a list label.
Ember Tetra tank mates — quick answers
- What fish can live with Ember Tetra?
- Usually safer companions on this hub include Cherry Barb, Corydoras Catfish, Dwarf Gourami, Glowlight Tetra, Harlequin Rasbora, Honey Gourami. Open each pair check before you buy — the list is a shortlist, not a guarantee.
- What tank mates should you avoid with Ember Tetra?
- Avoid Angelfish, Green Terror, Jack Dempsey, Oscar based on size, temperament, or predation risk on this profile.
- What size tank do Ember Tetra need for a community?
- 30L floor for a school of eight to ten. Comfortable in 60L or more planted setups with cover.