Rock Gunnel
NameRock Gunnel
Scientific NamePholis gunnellus
Common NamesRock Gunnel, Butterfish
FamilyPholidae
OriginNorth Atlantic Ocean, Coasts of Europe, Coasts of North America
Temperamentpeaceful
Dietcarnivore
Care Levelintermediate
Minimum Tank Size (Gallons)50
Max Size (Inches)12
Water TypeSaltwater
Temperature Range (°F)40-60
pH Range7.8-8.4
Compatible SpeciesOther small, peaceful coldwater marine fish, Coldwater blennies, Coldwater gobies, Coldwater hermit crabs, Coldwater snails
Description
The Rock Gunnel is an elongated, eel-like marine fish characterized by a series of black spots along its dorsal fin base. It typically inhabits rocky shores and tide pools in cold temperate waters, often seeking shelter under rocks or in crevices. This species is known for its ability to secrete a slippery mucus, which helps it evade predators and gives it the common name "butterfish" in some regions.
