Serpae Tetra tank mates
Serpae tetra tank mates are a school-size problem wearing a species-list disguise. The live engine marks no GOOD companions on this hub — every listed neighbour is caution or avoid until the school is honest. In ten or twelve fish, nipping stays inside the red shoal; in three or four, trailing fins on bettas, guppies, and angelfish take the damage. Corydoras, bristlenose plecos, dwarf gouramis, neon tetras, discus, and guppies sit in caution; bettas are avoid. Buy the full school before you judge the species, then choose short-finned or armoured company and pair-check every long-fin plan.
Common mistakeThree serpae tetras in a mixed community is the classic fin-nipping setup. Small groups focus relentless attention on long-finned neighbours instead of dispersing energy inside a real school. Keep at least eight — preferably ten or more — in a longer planted tank, or skip the species. Under-stocking creates the reputation; it is not bad luck.
Each name below opens a pair check with Serpae 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.
None listed here. Use the pair checker with species you are considering.
Risky or situational
May work with more water, a mature system, or a species-only setup. Read the pair page before you experiment.
Angelfish reaches 20cm and is flagged predatory or as likely to eat small fish. Adult-size Serpae Tetra at 4cm is inside that gape range. Angelfish is rated semi-aggressive, so expect chasing, fin damage, or display behaviour directed at Serpae Tetra. Run the pair checker before stocking.
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
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.
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Fish to avoid with Serpae Tetra
Predation, aggression, or space rules on this profile. Treat these as poor default mixes.
Betta conflicts with Serpae Tetra on temperament, predation, or footprint. The juvenile size in a shop tank is not the figure that matters here.
Tank size and groups
- Published minimum for Serpae Tetra: 100L. 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: 100L hub.
Easier alternatives to consider
Hardier first-tank names from the library. Still read the profile. Not a substitute for reading this one.
Plan before you buy
Start a pair check with Serpae Tetra, or open a starter plan with the top safer companions in the builder.
Tank hubs: 100L
Related reading
Guides that list other fish with the same trait, so you can plan around the group rather than one row.
- Fin-nipping fish →
Serpae Tetra is on this list. Matters more with long-finned tank mates.
- Schooling & group fish →
Plan the group of 8+ before choosing tank mates.
Filtration & heating
A 100L minimum tank for Serpae Tetra needs a filter rated for at least 400L/hr turnover and a heater maintaining 22–28°C.
Similar fish (same category)
- Black phantom tetra · min 80L
- Columbian Tetra · min 80L
- Diamond Tetra · min 120L
- Penguin tetra · min 80L
- Rosy Tetra · min 80L
- Rummy Nose Tetra · min 80L
- Splash tetra · min 80L
- Beckford Pencilfish · min 60L
Featured compatibility checks
Curated pair pages for Serpae Tetra. Each opens a full verdict — not just a list label.
Serpae Tetra tank mates — quick answers
- What fish can live with Serpae Tetra?
- This hub has no “usually safer” (GOOD) companions for Serpae Tetra. Workable neighbours sit in caution — for example Angelfish, Bristlenose Pleco, Corydoras Catfish, Discus, Dwarf Gourami, Guppy. Treat every name as a pair check, not a shopping list. Serpae tetra tank mates are a school-size problem wearing a species-list disguise.
- What tank mates should you avoid with Serpae Tetra?
- Avoid Betta based on size, temperament, or predation risk on this profile.
- What size tank do Serpae Tetra need for a community?
- 100L is the planning floor for adult swimming space and bioload. A 122L+ tank is the more comfortable long-term footprint. Length and depth matter as much as raw litres for active or territorial fish.