This attractive fish is a female bumblebee goby. The scientific name is not known for certain but I’m tentatively identifying it as Brachygobius doriae.
I’m keeping my gobies in freshwater and they seem to be doing fine. Adults eat live food; mainly newly hatched brine shrimp and daphnia with the odd treat of frozen bloodworm.
I’ve had some for around 18 months and they have produced 4 batches of very small fry. The fry are very tricky to raise and so far I’ve not had any live for more than 3 weeks. They seem to wither away and die from the tail up. Very frustrating.