Blue Neon Stiphodon Goby (Stiphodon semoni)
A rare freshwater Stiphodon goby with neon blue male coloration, peaceful behavior, and natural algae-grazing activity for mature planted and river-style aquariums.
The Blue Neon Stiphodon Goby, Stiphodon semoni, is a beautiful small freshwater goby known for its metallic blue to blue-green coloration in mature males, peaceful temperament, and constant grazing behavior. It is also searched as Cobalt Blue Goby, Freshwater Neon Goby, Sumatran Blue Neon Goby, Opal Cling Goby, and Blue Neon Goby.
This is not a common bottom fish and not a standard algae eater. Stiphodon gobies are specialized stream fish that do best in mature aquariums with clean water, strong oxygenation, and natural water flow.
| Species | Stiphodon semoni |
|---|---|
| Size (adult) | 2.5 to 3.5 cm |
| Temperament | Peaceful |
| Water Type | Freshwater |
| Behavior | Algae grazing, bottom-dwelling |
| Habitat | Mature planted tanks, river-style setups |
FAQ
What is the typical size of a Blue Neon Stiphodon Goby when mature?
The adult size ranges from 2.5 to 3.5 cm.
Is this goby suitable for a community tank?
Yes, it is peaceful and suitable for community tanks with compatible species.
Does it actively graze on algae?
Yes, it exhibits natural algae-grazing behavior, making it helpful in planted tanks.

Justin Hunter –
The Blue Neon Stiphodon Goby adds a striking visual element to my planted tank. The male fish develops a beautiful blue-green hue after a few months. It stays calm and doesn’t interfere with other fish. I appreciate its natural grazing habits that keep algae under control without needing extra cleaning.
Jack Rees –
I’ve had this goby for about six months now. It’s very active at the bottom and seems to enjoy the algae on the glass and substrate. The coloration is vivid, especially in mature males. I keep it in a river-style setup with strong water flow, which seems to suit it best.
Amy Mills –
This goby is a rare find and stands out in any freshwater aquarium. It’s peaceful, doesn’t chase other fish, and helps maintain algae levels. The blue coloration is subtle but elegant over time. I recommend it for aquarists who want a unique and low-maintenance species.