Cactus and Leopard Plecos (L155, L114) (Acanthicus and Pseudacanthicus species) is an advanced-level freshwater fish that needs at least 150 gallons and 76-84°F. Large, spiny, predatory-leaning plecos with striking spots or colored fin edges. They are sold as small juveniles but need a very large tank, strong filtration and hard hiding places when adult. They are also quite spiny, so use caution when netting.
Care facts at a glance
| Scientific name | Acanthicus and Pseudacanthicus species |
|---|---|
| Family | Loricariidae |
| Origin | Amazon and Orinoco basins, South America |
| Adult size | 12-24 in |
| Minimum tank | 150 gallons |
| Temperature | 76-84°F |
| pH | 6.0-7.5 |
| Temperament | Territorial, spiny; peaceful with fish too big to bother |
| Social behavior | Solitary |
| Swim level | Bottom |
| Difficulty | Advanced |
| Diet | Carnivore and omnivore: meaty sinking foods, shrimp, wood, some vegetables |
| Typical lifespan | 15+ years |
Quick tips
- Plan for a 150-gallon or larger tank before buying a juvenile.
- Keep only one per tank unless the tank is huge.
- Feed meaty sinking foods; provide caves and wood.
San Diego water
Captive-bred stock usually adapts to San Diego tap water with slow acclimation. For best color and health, many keepers blend tap with RO/DI water. Learn the numbers in our San Diego tap water guide.
Before you buy
Make sure your tank is cycled (how to cycle a tank), check your numbers with the water testing guide, and use the compatibility guide to check tankmates. These are general ranges; individual fish and local water vary.
Find it at Pet Zone
Pet Zone Tropical Fish is a San Diego aquarium store with two locations. Stock changes daily, so call ahead if you are after a specific species or plant. Shop online at petzonesd.com.
4160 Convoy St, San Diego, CA 92111
(858) 987-0309
Open daily, 10am-6pm
Aquascaping, planted tanks
4266 University Ave, San Diego, CA 92105
(619) 283-1812
Closed Monday; Tue-Fri 10:30am-6pm, Sat 11am-6pm, Sun 11am-4pm
Monster fish, koi