Compatibility brief
Can Clown Pleco live with Harlequin Rasbora?
Often a workable match in a suitable, well-run tank. Still verify behaviour in your setup.
In many setups, Clown Pleco and Harlequin Rasbora are often kept together in a suitable peaceful community when temperature and pH are matched and the tank is sized for adults. Individual behaviour, filtration, and layout still decide whether it works in your home.
Compatibility score
Profile confidence: medium
Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.
110L
Combined minimum footprint reference for these two species: about 110L (larger active fish often want more length).
Assessment details
Compatible temperaments
Both Clown Pleco and Harlequin Rasbora share a peaceful temperament.
Compatible temperature range
Both fish can comfortably share similar water temperatures.
Next steps
Concrete changes, not "research more" filler.
- •Harlequin Rasbora should be kept in a group of at least 6 for best health and behaviour.
Try instead
- →Harlequin Rasbora should be kept in a group of at least 6 for best health and behaviour.
- Planet Catfish. Panaqolus maccus (clown plec / L104, Cat-eLog)
Primary: hobby standard wood-eater sheet: L-number link, size, feeding, and the driftwood-dependence reality for Panaqolus maccus.
- FishBase. Panaqolus maccus
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Seriously Fish. Trigonostigma heteromorpha
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Trigonostigma heteromorpha
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Trigonostigma heteromorpha
Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.
Try this next
Build the full stocking list with Clown Pleco + Harlequin Rasbora
Plan further
Try both species in the full-stock tank check, or open either fish profile for mates lists. Methodology explains how verdicts are produced.
Individual fish vary in personality. Fishori uses conservative hobby rules. Observe any new introduction closely, feed thoughtfully, and keep a quarantine or backup plan. This is not veterinary advice.
Profile data confidence: medium. Driven by the lower-confidence profile (Clown Pleco): Based on typical aquarium care sources; details may vary between setups.