Blue-spot Watchman Goby grow a bit larger the Pink Watchman Goby but have similar markings - obviously blue instead of pink. Watchman gobies will form a symbiotic relationship with prawn in the wild and in the aquarium, often sharing their sand burrows. In fact the name "watchman" comes from this behavior. Watchman gobies stand as look outs for predators while shrimp to the digging.
Scientific Name:Cryptocentrus pavoninoides
Max Size: 5 1/2 inches
Diet: mysis shrimp, brine shrimp, and table shrimp