you buy sinking pellets or get some minnows for it to eat p.s. its a bottom feeder so dont give it flakes!
Dragon goby (Gobioides brousonnetti) is a scavenger that feed only on smaller food types, such as plankton, daphnia and bloodworms.
I have been feeding mine sinking pellets. the dragon goby is a bottom feeder.
The dragon goby is semi-aggressive, but mainly feeds by sifting organisms out of the mud. In general, like most fish, they will eat anything that fits in its mouth. A fancy goldfish can reach 10"-12" and a dragon goby can reach 24". It would seem that once the goldfish reached a large enough size, it would be safe. I would not put a 2" goldfish with a 24" goby.
By messager
Caucasian goby was created in 1840.
Bucchich's goby was created in 1870.
Golden goby was created in 1810.
Fries's goby was created in 1874.
Rock goby was created in 1758.
Caspian goby was created in 1831.
Deepwater goby was created in 1877.
Edgbaston goby was created in 1995.