dragonets mandarin goby

Hello everyone, I recently bought a Mandarin Goby for my year and a half 32 gal saltwater tank, for the past 2 weeks I've seen him pecking at the substrate and rocks all the time which I suppose means there are copepods in the tank, but still he seems to be very thin and is not eating the live...

Who has experience and would be open to share about a tank rehoming multiple dragonets and a possum wrasse! Or multiple species competing for same food source (pods)? Context: Innovative Marine Peninsula 14 Gal I brought home 2 wild mandarins! Was able to get them to eat live + frozen brine...

Hello! I was wondering what the best sand sifting gobies/blennies/dragonets would be for a 20 gallon long reef tank. I currently have a pair of clowns, pep shrimp, snails, and saltwater mollies. thanks in advance! :D