In Spanish, this fish is called Traganavis Dorado. Which we love because it translates roughly as the golden swallower. From this, maybe you can guess what the most common English name for this fish is already, yup, Yellowhead Jawfish; sometimes also called Pearly Jawfish. Scientifically this...
So I have a Opistognathus aurifrons that inhabits no place for longer than 2 days in a row. The whole tank has on average around 3-5cm of sand with lots of small shells and small gravel like coral fragments. There's also a lot of holes around at sand level that he can slip in and dig into the...