Care guide
Lawnmower blenny care
There's no guide just for Lawnmower blenny yet. Here's caring for gobies and blennies; ask the seller about anything specific to this species.
- Kind
- Goby or blenny
- Adult size
- About 13 cm
- Smallest tank
- 120 litres
- Water temperature
- 24–27 °C
- Salinity
- 1.023–1.026 SG
- Temperament
- Semi-aggressive
- Reef safe
- Yes
- Care level
- Easy
- Where they come from
- Usually wild-collected
- Good to know
- Grazes hair algae; needs a mature tank with algae to eat or algae-based foods.
- CITES
- Not listed
Gobies and blennies are small, characterful fish that perch on rocks and sand. Most are peaceful and reef safe, and many suit small tanks.
Behaviour
Watchman gobies often pair with a pistol shrimp and share a burrow. Neon gobies clean other fish. Blennies graze algae and perch in rock holes.
Tank
Give them sand and rockwork with caves, and a tight lid: gobies and blennies jump.
Food
Feed small frozen foods like mysis and brine shrimp; blennies also need algae and seaweed.
Further reading
General information to help you prepare, not veterinary advice. Every animal is different: ask an experienced vet about yours. Reviewed by PerfectPal on October 13, 2026.