The Filamented Sand Eel, or Spotted Sand Diver, has a long, tubular body with wide vertical brownish-orange bands and pale blue dots horizontally down the mid-line. The first three spines of the dorsal fin are elongated, giving the Filamented Sand Eel its name. Use extreme caution when moving this blenny, as the long spines will easily become entangled in netting.

The Filamented Sand Eel requires a reef environment in a 70 gallon or larger peaceful community tank, with live rock and live sand for hiding and scavenging. Because they scavenge for food by sifting through sand, they are a difficult fish to maintain. Their diet should include finely cut meaty marine foods.

Due to variations among each species, livestock may not look identical to the image provided.