Mekong Bumblebee Goby

About

The Mekong Bumblebee Goby (Brachygobius mekongensis) is one of the smaller members of an already tiny genus, topping out well under an inch even as a full adult. Native to the Mekong River system across Thailand, Laos, and Cambodia, it naturally occupies sluggish backwaters and swampy areas thick with roots and dense plant growth. The kind of sheltered, low-flow habitat that gives these little gobies plenty of cover to dart between. Like others in the bumblebee goby group, it carries bold alternating dark and pale banding across its body, which is where the common name comes from. Despite the beginner-friendly care rating, keep in mind that this is a brackish species, so it does best with at least a light salt mix in the water rather than a fully freshwater setup. It appreciates a tank with plenty of hiding spots. Small caves, driftwood tangles, and dense planting will all be used. Brachygobius gobies as a group can be somewhat territorial with their own kind, so watch for any squabbling if you're keeping a group. Their small size makes them a natural fit for a species-specific nano brackish setup, and they're genuinely rewarding fish to observe up close.