Gobies and Blennies

Few groups pack as much personality, color, and usefulness into a small package as the gobies, blennies, and dartfish. These are the character fish of the reef, the ones that perch on a favorite rock and watch the room, hover in the open water like tiny anthias, or team up with a pistol shrimp to share a burrow. Many of them earn their keep, too: sand-sifting gobies keep the substrate bright and aerated, algae-grazing blennies like the Lawnmower and Starry help hold nuisance growth in check, and watchman gobies bring one of the hobby's most fascinating symbiotic partnerships right into your display. From the tiny Yasha and Yellow Rose Gobies and eye-catching shrimp gobies to the graceful hovering firefish and dartfish, the standout mandarins and dragonets, and the comical perching blennies, this group offers something for nano tanks and large reefs alike, and most are reef safe and well-suited to peaceful community systems.

A few things are worth knowing before you buy, since care needs vary quite a bit across the group. Many gobies and dartfish are accomplished jumpers, so a tight-fitting lid or mesh top is essential for the majority of the fish here. Sand-sifting and burrowing species need a deep, fine sand bed to feed and shelter properly, while the mandarins, dragonets, and other pod-hunters depend on a mature, established tank with a healthy copepod population and often require frequent target-feeding to thrive. Algae-grazing blennies do best in tanks with natural growth to browse, supplemented with quality herbivore foods. Whether you're after a hardworking cleanup specialist, a bold splash of color, or a fascinating shrimp-goby pair, browse the species below for the specifics on size, care level, tank requirements, and reef compatibility, since each one brings its own quirks and charm to the tank.