Heterostichus rostratusis commonly referred to as Giant kelpfish. Difficulty in the aquarium: There are no reports available yet that this animal has already been kept in captivity successfully. A aquarium size of at least 2000 Liter is recommended. Toxicity: Toxic hazard unknown.
Found among rocks with large seaweeds, often in kelp. Young occur in schools while adults are solitary. Feeds on small crustaceans, mollusks and small fishes. Female attaches eggs to seaweeds, male guards them.
Host of Chondracanthus heterostichi Ho, 1972 ( ectoparasit) and
Lepeophtheirus parviventris Wilson C.B., 1905 ( ectoparasit)