Compatibility brief
Can Guppy live with Twig / whiptail catfish?
Caution. Check the issues below before buying.
Compatibility score
Profile confidence: low
How we decideFishori checks adult size and predation risk, behaviour, water requirements and tank needs before giving a verdict.
150L
Combined minimum footprint reference for these two species: about 150L (larger active fish often want more length).
Assessment details
Compatible temperaments
Both Guppy and Twig / whiptail catfish share a peaceful temperament.
Compatible temperature range
Both fish can comfortably share similar water temperatures.
Narrow pH overlap
Top issueThese fish can share water but their ideal pH ranges overlap only slightly. Aim to keep pH stable in the shared range.
“These fish can share water but their ideal pH ranges overlap…”
Narrow pH overlap
- Seriously Fish. Poecilia reticulata
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Poecilia reticulata
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Poecilia reticulata
Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.
- Wikipedia. Guppy
Encyclopaedia overview; use specialist aquarium sources for your stock's real temperature/pH/footprint needs.
- LiveAquaria. Farlowella (twig / whiptail) catfish
Primary: retailer care page specifically titled Farlowella acus: tank size, planted tank use, and feeding when algae is scarce. Trade whiptails are often mixed Farlowella/Sturisoma; confirm snout/head profile from photos, not a single common name.
- Planet Catfish. Farlowella acus (Cat-eLog species sheet)
Primary: hobby data sheet: identification, long-snout care, and typical failure modes (outcompeted, wrong substrate) for this loricariid type.
- FishBase. Farlowella acus
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
Try this next
Build the full stocking list with Guppy + Twig / whiptail catfish
Plan further
Check each species’ mates list, size the glass, then verify the full stock in the builder. 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 (Twig / whiptail catfish): Typical care sources — trade names for this fish get mixed up, so verify the ID before you buy.

