Two Spot Goby

Male Two Spot Goby

The Two Spot Goby, Gobiusculus flavescens, makes an excellent aquarium fish; it a small peaceful goby that is active & is in almost constant motion. It grows to about 4cm, the males in are very attractive with  iridescent blue markings particularly at breeding time. Only the males appear to have the two spots, one just in-front of the tail & the other above the pectoral fin. The males guard the eggs until they hatch; I have not found any fry in the aquarium as they are presumably eaten by the other inhabitants. They are short lived, living for around two years.

Male showing breeding colours.

Female with only one spot in-front of tail.

Male guarding eggs.

Marine worm & Two Spot Goby

Several of these small worms have turned up in the aquarium, they appear to have come attached to some live rock introduced into the aquarium. The Gobies, in this instance a Two Spot Goby, (Gobiusculas flavescens), have shown interest but have never been seen eating any.

 Here in the video above the worm can be seen pulsating.

Female Two Spot Goby showing interest in the worm.

 If anyone can identify the worm please let me know.