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The Janss' Pipefish is a long sleek fish with a body shape similar to that of an eel. In the wild it acts as a cleaner fish for Cardinalfish.

It is difficult to keep in an aquarium and should be kept with other pipefish and seahorses in a separate, species-only tank that is 25 gallons or larger. It will not harm ornamental invertebrates in a reef setting. DO NOT HOUSE with invertebrates with stinging tentacles (most corals and anemones), since they can harm it. The tank should have plenty of hiding places such as caves or overhangs. The Janss' Pipefish reacts poorly when harassed by other more aggressive fish such as: blennies, wrasses, tobies, triggerfish, and porcupinefish. Live rock and sand can provide organisms which supplement the diet.

It usually requires live food such as vitamin-enriched brine shrimp, baby guppies, grass shrimp, mosquito larva, and daphnia. It needs to be fed at least three times per day, and is a very slow eater because of its tiny tubular mouth.