Compatibility Report
GuideMyTank compatibility analysis for Angelfish and Bristlenose Pleco.
Planning verdict
cautionOnly plan this pair if every listed condition can be met, and have a separation plan if stress or aggression appears.
No automatic safety blocker was found.
Angelfish and Bristlenose Pleco receive a conditional verdict from the current structured assessment. Angelfish is recorded as semi-aggressive with an aggression level of 5/10; Bristlenose Pleco is recorded as peaceful with an aggression level of 2/10. The recommendation is based on the combined water, space, behavior, grouping, and predation checks below rather than on species names alone.
Angelfish has a recorded temperature range of 76–82°F and pH range of 6.5–7.5. Bristlenose Pleco is recorded at 73–80°F and pH 6.5–7.8. Their shared planning window is 76–80°F for temperature and 6.5–7.5 for pH. A shared aquarium must stay inside the overlap rather than merely touching each species’ outer tolerance.
Angelfish sets the larger listed base aquarium requirement at 29 gallons; the other listed minimum is 20 gallons. Angelfish is the larger adult by the recorded maximum, reaching 6 inches, compared with 5 inches. These figures are starting constraints, not a stocking-capacity calculation, because the complete group sizes and bioload still matter.
Angelfish is a calm species associated with the mid zone and moderate flow. Bristlenose Pleco is moderate, uses the cave zone, and has a moderate flow preference. Angelfish does not have a recorded minimum school larger than one, while bristlenose pleco does not have a recorded minimum school larger than one. The aquarium must support both social structures without forcing either species into insufficient space.
Angelfish is recorded as a omnivore with intermediate care, while Bristlenose Pleco is a herbivore with easy care. Their listed preferred tank styles are planted and rockwork. Feeding access, cover, open swimming room, filtration, and observation should be planned around the more demanding requirement rather than averaged between the two species.
Use these pair-specific boundaries before treating the verdict as an acceptable stocking plan.
Only plan this pair if every listed condition can be met, and have a separation plan if stress or aggression appears.
These references support the underlying species records used by this assessment. They do not necessarily evaluate this exact pair together.
Continue with the most relevant care and compatibility resources for Angelfish and Bristlenose Pleco.