Red-Spotted Blenny

The Red-Spotted Blenny is a small, character-rich marine fish well suited to reef aquariums that can support its grazing habits. Growing to about 4–5 inches, it does best in established tanks of 30 gallons or larger with abundant rock covered in natural microalgae. Its cryptic body patterning with reddish spotting allows it to blend seamlessly into rockwork, while its expressive behavior makes it a constant point of interest. In mature systems with ample grazing opportunities and minimal competition, the Red-Spotted Blenny is a hardy, engaging addition that brings both utility and personality to marine aquariums.