Likely Reef Tank Suitable
Likely Fish-Only Tank Suitable
These fishes belong in the Order Gasterosteiformes and Suborder Syngnathoidei as members of the Family Centriscidae (Shrimpfishes) consisting of 2 genera, and 4 species.
These tube-shaped mouthed fishes are closely related to pipefishes. They are knife-like in shape and swim with their head pointed downwards. Sometimes associated with long spine urchins. They feed on planktonic animals. Require live foods, preferably live mysis shrimp.
For in-depth information concerning these fishes, checkout Reef Fishes Volume 1 by Scott Michael (ISBN #1-890087-21-1). You can see a review of this exquisite book by visiting my Product & Book Reviews page.