Snake Pipefish

Snake Pipefish

The Snake Pipefish (Corythoichthys intestinalis), also called the scribbled or messmate pipefish, is one of the most approachable members of the pipefish group — a slender, snake-like body intricately scribbled in pink, brown and cream. It moves slowly over rock and sand, picking tiny crustaceans from surfaces, and unlike many pipefish it is comparatively hardy, making it a good introduction to the group for an aquarist with a mature reef.

Even so, like all pipefish it is a specialised feeder, and success depends on a tank rich in microfauna.

Natural Habitat & Origin

Corythoichthys intestinalis is found across the Indo-Pacific, where it lives on coral reefs and rubble flats, often in pairs, moving deliberately over surfaces as it forages for tiny prey. It stays close to the bottom and to cover.

In the aquarium it wants plenty of live rock and an established system teeming with microfauna, in calm surroundings where slow tankmates do not outcompete it.

Care Requirements

Maintain stable marine conditions: salinity around 1.024–1.026, pH 8.1–8.4, and a temperature of about 24–26°C (75–79°F). Reaching about 13 cm (5 inches), it can live in tanks of around 115 litres (30 US gallons) or more, but the tank's biological maturity matters far more than its size: an established, microfauna-rich system, ideally with a refugium, is the single most important requirement.

Diet & Feeding

The Snake Pipefish is a micro-carnivore that feeds continuously on tiny crustaceans — copepods and amphipods — picked from rock and sand. It is somewhat more willing than many pipefish to accept small frozen foods, but it still relies heavily on natural microfauna. Maintain a steady supply of live copepods, and supplement with enriched baby brine shrimp and tiny mysis. Watch its body condition closely; a thin pipefish needs immediate live feeding.

Behavior & Temperament

This is a peaceful, slow-moving fish that bothers no one and is easily out-competed or bullied. It is best kept singly or as a pair, ideally in a tank dedicated to small, gentle species. It spends its time foraging deliberately over the rockwork and sand.

Tank Mates

Keep it only with peaceful, slow-moving fish — other pipefish, small gobies, firefish, dragonets and similar — and avoid anything fast, greedy or aggressive that will out-compete it for food or harass it. It is fully reef-safe, leaving corals and ornamental invertebrates alone (though, like many small reef fish, it may be at risk from large hermit crabs or anemones).

Breeding

Like other pipefish, in Corythoichthys intestinalis the male broods the eggs, carried on his underside until the young hatch. It will pair and breed in a suitable, food-rich tank, though rearing the fry requires abundant tiny live foods and dedicated effort.

Common Health Issues

The dominant risk for this species is starvation in a tank lacking sufficient microfauna — prevent it with a mature, copepod-rich system and diligent feeding. Pipefish are also sensitive to poor water quality and to stress from aggressive tankmates. Like all marine fish they can be affected by marine ich (Cryptocaryon irritans) and marine velvet (Amyloodinium ocellatum). Choose a feeding specimen, provide a mature, peaceful reef, and this hardy little pipefish can do well in the right hands.