Bristlenose Pleco tank mates
The pleco you should buy. Stays under 12 cm, grazes algae honestly, and fits a planted 80L+ community tank.
Lists below are built from this species record (safest, best with, risky, unsafe) — each link opens a pair-level check, not a guarantee.
Best tank mates (on file)
Merged from conservative safest and best with fields — de-duplicated by species.
The Bristlenose Pleco profile lists Cherry Barb as both safe and 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 swims in the middle zone while Bristlenose Pleco stays in the bottom, so the two will not crowd the same water column.
The Bristlenose Pleco 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.
The Bristlenose Pleco profile lists Guppy as both safe and a recommended pairing. Guppy swims in the top zone while Bristlenose Pleco stays in the bottom, so the two will not crowd the same water column.
The Bristlenose Pleco profile lists Molly as both safe and a recommended pairing. Water parameters barely overlap between the two, so check the temperature and pH ranges on both profiles before stocking. Molly swims in the middle zone while Bristlenose Pleco stays in the bottom, so the two will not crowd the same water column.
The Bristlenose Pleco 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 swims in the middle zone while Bristlenose Pleco stays in the bottom, so the two will not crowd the same water column.
The Bristlenose Pleco profile lists Platy as both safe and a recommended pairing. Platy swims in the middle zone while Bristlenose Pleco stays in the bottom, so the two will not crowd the same water column.
Risky or situational
From risky tank mates and broad avoid with (excluding “unsafe” below). May work with species-only setups, more water, or mature systems — read the pair page.
None on file beyond the safe list.
Fish to avoid with Bristlenose Pleco
From the unsafe list — predation, aggression, or space rules on this profile.
Oscar reaches 35cm and is flagged predatory. Bristlenose Pleco at 15cm is prey-sized for it. Oscar needs at least 300L, far above the 80L minimum for Bristlenose Pleco. The tank that houses one stresses the other. Oscar is rated aggressive and Bristlenose Pleco is rated peaceful. No community-style planning carries that gap.
Jack Dempsey needs at least 200L, far above the 80L minimum for Bristlenose Pleco. The tank that houses one stresses the other. Jack Dempsey is rated aggressive and Bristlenose Pleco is rated peaceful. No community-style planning carries that gap.
Common Pleco needs at least 600L, far above the 80L minimum for Bristlenose Pleco. The tank that houses one stresses the other.
Tank size and groups
- Published minimum for Bristlenose Pleco: 80L — group minimum 1 .
- 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: 80L hub.
Plan before you buy
Pair checks for every mix, then multi-species stocking in the builder.
Filtration & heating
A 80L minimum tank for Bristlenose Pleco needs a filter rated for at least 320L/hr turnover and a heater maintaining 20–27°C.
Similar fish (same category)
- Otocinclus — min 60L
- Siamese Algae Eater — min 100L
- Clown Pleco — min 110L
- Royal pleco — min 500L
- Common Pleco — min 600L
Related (care + temperament)
Other species that list Bristlenose Pleco
Reverse lookup: these profiles reference Bristlenose Pleco under safe or “best with” lists.