Pipefishes (Syngnathidae)

Banded Pipefish

Microphis lineatus

Microphis lineatus, known as the Banded Pipefish, belongs to the family Syngnathidae. This species inhabits the coastal tropical waters of the American continent. It can be found in fresh, brackish, and marine waters along the coastline, extending from the southern regions of the USA (Florida) and Mexico to Brazil, as well as throughout the extensive Caribbean basin. A characteristic habitat for these fish is dense thickets of Sargassum seaweed.

Tank
from 250 L (66 gal)
Temperature
23 – 28 °C (73 – 82 °F)
Size in aquarium
20 cm (7.9 in)
Acidity
pH 6–8
Natural rangeRange on the map
  • Western Atlantic Ocean area
  • Caribbean Sea area
  • Bahamas
  • Barbados
  • Belize
  • Brazil
  • Colombia
  • Costa Rica
  • Cuba
  • Dominica
  • Dominican Rp
  • French Guiana
  • Grenada
  • Guadeloupe
  • Guatemala
  • Guyana
  • Haiti
  • Honduras
  • Jamaica
  • Martinique
  • Mexico
  • Nicaragua
  • Panama
  • Puerto Rico
  • Suriname
  • Trinidad and Tobago
  • United States
  • Venezuela
  • Virgin Is. (US)

Tank conditions

Plan the tank stocking
Temperature
23 – 28 °C (73 – 82 °F)
Water pH
Slightly acidic (6) – Slightly alkaline (8)
Water dH
Hard (15) – Very hard (30)
Water salinity
increased (10–15 g/L)
Size in aquarium
20 cm (7.9 in)
Lifespan
5 years
Temperament
Peaceful (regular)
Toward small fish
not a predator
Required aquarium volume
from 250 L (66 gal)
Lighting
dimmed
Substrate
any (no restrictions)
Water flow
moderate
Feeding
Meat / protein live, frozen, fresh
Keeping
Small group 3–4 individuals
  • Lifespan. A lifespan to expect under good care, not a measured value: it depends heavily on tank volume, water quality and diet — and for selectively bred forms, on their origin as well.
  • Toward small fish. Based on the Predators category in the catalog or the temperament in the species parameters. “A risk to small fish” means the species is not a predator by habit, yet will swallow any fish that fits in its mouth.
  • Required aquarium volume. This is a husbandry recommendation, not a measured value: the volume depends on the keeping mode (small group (3–4 individuals)), footprint, decor and tank mates.

Care and keeping

Description

Adults of this fish can grow up to 20 cm in length. A distinctive feature of the Banded Pipefish is its unusually elongated and slender body, making it resemble a delicate twig. The fish's back has a brownish hue, while its belly is white. Red dots are visible along the entire body, arranged in a dotted pattern. Red spots also adorn the head. This body shape and coloration serve as reliable camouflage, helping the fish effectively hide among Sargassum seaweed. Although the Banded Pipefish is a marine fish, it reproduces in the brackish waters of estuaries or even in freshwaters further upstream. Due to this characteristic, it is suitable for keeping in brackish aquariums.

Habitat

The species is widely distributed in the western Atlantic Ocean, from the coast of New Jersey in the USA to São Paulo in Brazil, including the Caribbean Sea and the Gulf of Mexico. It inhabits diverse conditions, including fresh, brackish, and marine waters. Adults are often found in rivers and estuaries, preferring areas with dense aquatic vegetation or thickets of Sargassum seaweed, which serve as their shelter.

Behavior and Compatibility

This species is characterized by peaceful and calm behavior. It coexists well with its own kind and with other aquarium fish capable of adapting to brackish water. Examples of such tankmates include Monos, Archerfish, Spotted Scats, and others.

Care and Maintenance

For a group of 3–4 Banded Pipefish, an aquarium with a volume of 250 to 300 liters is recommended. It is crucial to ensure a water salinity equivalent to approximately half that of seawater, which means dissolving at least 15 grams of marine salt per liter of water. The aquarium setup should include areas with dense aquatic vegetation, including floating plants. Artificial plants that mimic the shape and color of Sargassum seaweed can be an excellent solution. Maintaining stable water parameters and preventing the accumulation of organic matter is critically important. It is important to remember that brackish water has a high pH value, at which decomposition products of organic matter (including ammonia compounds) pose the greatest danger to aquarium inhabitants. The diet of these fish should consist exclusively of live foods; brine shrimp will be an excellent choice.

Diet

The diet of these fish consists exclusively of live foods, among which brine shrimp are an excellent choice. The Banded Pipefish has close kinship with seahorses, which is reflected in their similar reproductive strategy. In this group of fish, the responsibility for the offspring falls to the males.

Breeding and Reproduction

The Banded Pipefish is a close relative of seahorses, and this kinship is evident in their similar reproductive strategy. In this group of fish, it is the males who take on the care of the offspring. When the spawning season arrives, pipefish move into the lower reaches of rivers to avoid marine predators. It is there that the reproduction process takes place. There, adult males receive fertilized eggs from females into a special pouch on their abdomen, where they incubate the offspring until the fry hatch.

Diseases

These fish are extremely sensitive to water quality and the accumulation of organic compounds, making them susceptible to bacterial infections if keeping conditions are violated. The absence of scales increases the risk of injury and subsequent infection of the skin. Prevention includes maintaining stable environmental parameters, regular water changes, and eliminating stress factors. The species tolerates transportation and sudden changes in water chemistry poorly, which often provokes a weakening of the immune system.

How to choose

When selecting specimens, attention should be paid to their activity and the integrity of their skin, which should be free of ulcers, spots, or damage. A healthy fish should exhibit exploratory behavior and not appear emaciated. It is important to ascertain what the specimen in the store is eating, as this species is a specialized predator that only consumes live foods and often refuses substitutes. The risk of mortality during adaptation is high, so it is recommended to purchase only outwardly active and well-fed fish.

Compatibility

There are no pair reviews for this species yet — check tankmates in the matcher.

All tankmates

Plants and this fish

Matching water does not mean the plant will stay intact.

Frequently asked questions

The essentials: size, tank volume, water parameters and care

How big does Banded Pipefish get?

An adult reaches 20 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does Banded Pipefish need?

The recommended volume is 250 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does Banded Pipefish need?

Temperature 23–28 °C, pH 6–8, hardness 15–30 dGH. Stability matters more than exact values: sudden swings are harder on the fish than a small deviation from the ideal.

How long does Banded Pipefish live?

Around 5 years when kept properly. Lifespan depends directly on tank volume, water quality and a varied diet.

Is Banded Pipefish aggressive?

Temperament: peaceful (regular). Keep this in mind when choosing tank mates.

How many Banded Pipefish should be kept together?

Recommended setup: small group (3–4 individuals). Ignoring this is a common cause of stress and disease.

What does Banded Pipefish eat?

Diet type: meat / protein (live, frozen, fresh). Feed small portions that are finished within a couple of minutes — overfeeding does more harm than underfeeding.

What is the scientific name of Banded Pipefish?

The scientific name of the species is Microphis lineatus, family Pipefishes (Syngnathidae). It also appears in the literature as: Doryichthys lineatus, Doryrhamphus sierra, Microphis brachyurus.

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Other scientific names and conservation status

Other scientific names
Doryichthys lineatus, Doryrhamphus sierra, Microphis brachyurus, Oostethus brachyurus, Oostethus lineatus, Siphostoma brevicaudum