of Blenny
Source: Webster's dictionaryBlennies do not have teeth or functional jaw, so food must be small enough for them to swallow whole. Source: Internet
Gobies have two distinct dorsal fins, Blennies have a single dorsal fin that runs the length of their body. Source: Internet
With the exception of Fang Blennies, Blennies are totally reef safe- in fact a reef environment is really best for them because they can be shy and the intricate rockwork of a reef provides ample hiding spaces. Source: Internet