Can Bristlenose Pleco Live With Jack Dempsey Cichlid?
Bristlenose Pleco and Jack Dempsey Cichlid are compatible. Temperature overlap 73–81°F.
Conditions: Minimum 55 gallon tank.
Parameter Comparison
| Parameter | Bristlenose Pleco | Jack Dempsey Cichlid | Overlap |
|---|---|---|---|
| Temperature | 73–81°F | 72–86°F | 73–81°F ✓ |
| pH Range | 6.5–7.5 | 6.5–8 | 6.5–7.5 ✓ |
| Temperament | peaceful | aggressive | Aggression risk ✗ |
| Max Size | 5" | 10" | Similar ✓ |
| Min Tank Size | 20 gal | 55 gal | 55 gal minimum together |
| Diet | Omnivore | Carnivore | — |
| Care Level | beginner | intermediate | — |
Tank Requirements for Bristlenose Pleco + Jack Dempsey Cichlid
To keep Bristlenose Pleco and Jack Dempsey Cichlid together, you need at minimum a 55 gallon tank. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Bristlenose Pleco
Ancistrus spp.
The Bristlenose Pleco is the most popular pleco species for home aquariums, and for good reason — they stay small (4–5 inches vs 12–24 inches for common plecos), are excellent algae eaters, and are hardy and easy to care for. Males develop distinctive bristle-like growths on their nose, which is how they get their name.
Full care guide →Jack Dempsey Cichlid
Rocio octofasciata
Named after the legendary boxer, Jack Dempsey cichlids are large, territorial Central American cichlids with iridescent blue-green spangles across their dark body. They are aggressive, intelligent, and interactive — many owners report them coming to the glass to greet them. The electric blue Jack Dempsey variant is significantly less aggressive and more colorful.
Full care guide →