Lawnmower Blenny tank mates
Salarias fasciatus
6 rated pairings from the Lawnmower Blenny care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Lawnmower Blenny needs at least 30 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.Ocellaris Clownfish
Amphiprion ocellaris
20 gal min · 3.5" adult · Semi-aggressive
Peaceful reef fish with similar water parameters and non-aggressive temperament
Cleaner Shrimp
Lysmata amboinensis
30 gal min · 2.5" adult · Peaceful
Peaceful scavenger that shares algae-grazing habitat without direct competition
Neon Goby
Elacatinus oceanops
20 gal min · 2" adult · Peaceful
Small, peaceful goby that occupies similar reef niche without aggression
Good matches
3 · Compatible with normal care — watch space and numbers.Pistol Shrimp
Alpheus randalli
20 gal min · 2" adult · Semi-aggressive
Benthic invertebrate that occupies different feeding niche; may ignore blenny

Nerite Snail
Neritina natalensis
5 gal min · 1" adult · Peaceful
Algae-eating snail with similar grazing behavior; no predation risk
Yellow Watchman Goby
Cryptocentrus cinctus
30 gal min · 3.5" adult · Peaceful
Peaceful bottom-dweller with different feeding strategy; minimal interaction
Also recommended alongside Lawnmower Blenny
Species whose own guides list Lawnmower Blenny as a tank mate.
Longnose Hawkfish
Oxycirrhites typus
30 gal min · 5" adult · Semi-aggressive
Achilles Tang
Acanthurus achilles
100 gal min · 9" adult · Semi-aggressive
Acropora
Acropora sp.
75 gal min · 2" adult · Peaceful
Astrea Snail
Astraea tecta
10 gal min · 2" adult · Peaceful
Bird Wrasse
Gomphosus varius
75 gal min · 12" adult · Peaceful
Blue Tang
Paracanthurus hepatus
100 gal min · 12" adult · Semi-aggressive
Camel Shrimp
Rhynchocinetes durbanensis
20 gal min · 2" adult · Peaceful
Court Jester Goby
Koumansetta rainfordi
20 gal min · 2.8" adult · Peaceful
Dog Face Puffer
Arothron nigropunctatus
100 gal min · 13" adult · Semi-aggressive
Flame Angelfish
Centropyge loricula
70 gal min · 4" adult · Semi-aggressive
Flame Hawkfish
Neocirrhites armatus
30 gal min · 3.5" adult · Semi-aggressive
Foxface Rabbitfish
Siganus vulpinus
75 gal min · 9" adult · Peaceful
French Angelfish
Pomacanthus paru
180 gal min · 15" adult · Semi-aggressive
Goniopora
Goniopora sp.
30 gal min · 2" adult · Peaceful
Kole Tang
Ctenochaetus strigosus
75 gal min · 7" adult · Semi-aggressive
Longnose Butterflyfish
Forcipiger flavissimus
75 gal min · 8.5" adult · Peaceful
Margarita Snail
Margarites pupillus
10 gal min · 1" adult · Peaceful
Maroon Clownfish
Premnas biaculeatus
30 gal min · 6" adult · Aggressive
McCosker's Flasher Wrasse
Paracheilinus mccoskeri
55 gal min · 3.5" adult · Peaceful
Melanurus Wrasse
Halichoeres melanurus
30 gal min · 5" adult · Semi-aggressive
Mimic Tang
Acanthurus pyroferus
75 gal min · 10" adult · Semi-aggressive
Naso Tang
Naso lituratus
150 gal min · 18" adult · Semi-aggressive

Nassarius Snail
Nassarius sp.
10 gal min · 1.5" adult · Peaceful
Niger Triggerfish
Odonus niger
100 gal min · 18" adult · Semi-aggressive
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.