Sailfin Pleco

Pterygoplichthys gibbiceps

Also known as: Leopard sailfin pleco, Spotted sailfin pleco, L083, L165

Water Parameters

• Temperature: 23–27°C
• pH: 6.5–7.8
• Hardness (GH): 89–357 ppm (5–20 dGH)

Values above are general hardness (GH). For carbonate hardness (KH), the buffer that keeps pH stable, see the water parameters guide.

Care Summary

The sailfin pleco (L083) is named for its magnificent, high, spotted dorsal fin, which it raises like a flag. It is a handsome fish, boldly marbled in dark brown and gold, and a genuinely good algae eater when young. The catch is size: it reaches up to 50cm and is one of the largest plecos in the trade, far too big for a standard aquarium and a producer of a very heavy waste load. It needs a tank of 450 litres or more with powerful filtration, and it is strictly a fish for a very large setup. It is an adaptable omnivore that will take algae, vegetables, sinking foods, and detritus, and it is hardy across a wide range of water. Peaceful towards tankmates, it is best kept with other large, robust fish. Please never release an unwanted sailfin into waterways: Pterygoplichthys have become serious invasive pests overseas, and release is both illegal and environmentally damaging in Australia.

Tankmates

Peaceful despite its size, and best kept with other large, robust fish such as big peaceful cichlids, silver dollars, and large barbs in a very big tank. Keep only one large pleco per tank, as they are territorial towards each other. Its real constraints are the tank size and filtration its 50cm adult body demands, not aggression. Never release an unwanted fish, as Pterygoplichthys are a serious invasive pest overseas and release is illegal in Australia.

Compatible with

• Angelfish
• Severum
• Firemouth Cichlid
• Silver Dollar
• Boeseman's Rainbowfish
• Denison Barb
• Bala Shark

Avoid keeping with

• Common Pleco
• Aggressive Tankmates
• Fin Nippers

Common Problems

• being bought small and outgrowing every standard aquarium, reaching up to 50cm
• a very heavy waste load that demands oversized filtration
• being released into waterways, where Pterygoplichthys are a serious invasive pest
• rasping on the slime coat of broad, flat-bodied tankmates in cramped tanks

Sources: planetcatfish.com, seriouslyfish.com · Last updated: 2026-10-04