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Fish

Smith's fang blenny

Meiacanthus smithi
French name : Blennie à dents de sabre de Smith

Smith's fang blenny is a small marine blenny of the family Blenniidae, native to the western Pacific. It has a slender pale body with dark stripes and a striking sail-like dorsal fin. Like other fang blennies it possesses venomous canine teeth used for defense, which deter predators. It is a generally peaceful, hovering fish that occupies the mid-water more than most bottom-dwelling blennies. It can be kept singly or as a pair; multiple individuals may quarrel unless the tank is large. Its venomous fangs make it largely immune to harassment, so it can hold its own in a community. It is reef-safe and does well in a peaceful reef aquarium with live rock and hiding spots such as small holes and abandoned tubes to shelter in. It is a planktivore, feeding on zooplankton in the water column, and should be offered frequent small meals of frozen mysis, brine shrimp, and finely prepared foods.

Water
Marine
Origin
Western Pacific reefs
Adult size
8.5 cm
Diet
Planktivore
Temperament
Peaceful
Difficulty
Intermediate
Smith's fang blenny (Meiacanthus smithi)
Illustration

Water parameters

Temperature23 – 27 °C
pH8.1 – 8.4
Carbonate hardness (KH)7 – 12 °dKH
Salinity33 – 35 SG

Tank & stocking

Minimum tank volume100 L
Volume budget per individual 40 L — adds up with tank-mates

“Minimum tank volume” is a reasonable floor, not an absolute limit. The per-individual budget is used by the Aqua app to estimate how heavily a tank is stocked.

Frequently asked questions

What size aquarium does Smith's fang blenny need?

Provide at least 100 litres to keep Smith's fang blenny in good conditions.

What water parameters does Smith's fang blenny need?

A temperature of 23–27 °C, pH 8.1–8.4, saltwater.

Is Smith's fang blenny peaceful or aggressive?

Its temperament is peaceful.

What does Smith's fang blenny eat?

Its diet: planktivore.

How big does Smith's fang blenny get?

Around 8.5 cm as an adult.

Is Smith's fang blenny suitable for beginners?

Care level: intermediate.

Planning a tank with Smith's fang blenny?

AquaTender turns these parameters into live advice: it checks whether your tank is big enough, how heavily it's stocked, and whether your fish are compatible — then tracks water tests, photos and maintenance for you.

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Fish from the same biotope

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