Reef Threads Podcast #271

Helfrichi firefish will likely be the mid-water occupants in Gary’s new tank.

We’re back again. This week we talk about glass-sponge reefs and go on a shopping trip to Diver’s Den to assemble an animal plan for Gary’s new tank. Download the podcast here, or subscribe to our podcasts at iTunes. Also, follow us on Twitter at reefthreads.—Gary and Christine

Sponsor: Rod’s Food
Rod’s Food website

Glass-sponge reefs
Ancient glass sponge reef discovered off B.C. coast, Betsy Trumpener and Carolina deRyk, CBC News

Diver’s Den
Diver’s Den website

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Sleeper Gobies: Genus Valenciennea

Valenciennea bella – Photo by Kevin Kohen Valenciennea is a genus of small, bottom-dwelling fish from the family Gobiidae. They can be found sifting sandy bottoms, along the edges of coral reefs and on flats in the Indo-Pacific. Behavior Valenciennea will perch directly on the substrate for extended periods of time while resting from sifting sand though their mouths.  Also referred to as “hover gobies”, these fish can also be observed floating motionless directly above the sand bed or other substrate.  The resting behavior of Valenciennea gobies has resulted in the common name “sleeper gobies”. Currently there are 15 recognized species of Valenciennea gobies but only a few are found prevalently in the US aquarium trade.  Below is a list of observed species in order