Medusa Pleco
Ancistrus ranunculus
Loricariidae
Moderate
Parameter dashboard
Temperature
22-26 °C
pH
6-7
Size
19.5 cm
Lifespan
12 years
Min tank120 L
Price$$$
DietHerbivore
TemperamentPeaceful
OriginSouth America
Shrimp-safeNo
Care guide
Ancistrus ranunculus is a peaceful, bottom-dwelling fish from South America. It requires a minimum tank size of 120L and a temperature range of 22.0-26.0°C. A suitable diet and water parameters of pH 6.0-7.0 are also necessary.
Tankmate compatibility (sample)
Pairwise screening against other species in the database (prioritizing the same family when data is available).
Review first (6)
Caution or avoid from automated rules — confirm before mixing.
| Species | Assessment | Notes |
|---|---|---|
| Leopard Frog Pleco Peckoltia compta Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Nannoptopoma Nannoptopoma sternoptychum Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Otocinclus Otocinclus vittatus Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Oxyropsis Oxyropsis carinata Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Parotocinclus Parotocinclus eppleyi Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Royal panaque Panaque nigrolineatus Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
6 species with compatible assessment in this sampleCollapse to hide the list; use “Open pair in Compare” for the full matrix.
| Species | Assessment | Notes |
|---|---|---|
| Blue-eye panaque Panaque suttonorum Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
| Farlowella Catfish Farlowella vittata Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
| Giant Whiptail Sturisoma aureum Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
| Gold Nugget Pleco Baryancistrus xanthellus Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
| Royal Farlowella Sturisoma festivum Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
| Sunshine Pleco Scobinancistrus aureatus Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
Same rule engine as Compare. Not a substitute for observation, tank size, or acclimation.
Related species
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