Diamond Watchman Goby



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The Diamond Goby, also known as the Watchman, Pretty Prawn, Maiden, Orange Spotted Diamond, Orange-dashed, and Orangespotted Sleeper Goby. The first time it was discovered was by Tomiyama in the Indo-Pacific Ocean in 1956. The body and head are both white, with spots of orange. It's a fragile fish that is an excellent addition to the tank due to its long-lasting nature. It is recommended to keep it in a 30 gallon or greater aquarium that has live sand for the substrate, as well as an attached refugium populated. Diamond Watchman Goby uses shallow burrows within the substrate as refuges and keeps the substrate oxygenated. It does not usually become aggressive with other tank mates, but it is territorial, and may fight with its own species unless they are a couple. This saltwater fish feeds off the bottom of the tank as it moves in the sand. The diet of the goby should comprise various types of brine shrimp that are frozen, live mysis shrimp, live blackworms, and cooked foods for carnivores. It is recommended to feed it frequently. Approximate Size of Purchase: Small: 1-1/2" to 2"; Medium: 2" to 3"; Large: 3" to 4"; XLarge: 4" to 5"  
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General information on Diamond Watchman Goby The body and head are both white, with spots of orange. It is a timid fish that is a wonderful aquarium addition because of its durability. It is recommended to keep it in an aquarium that has live sand as the substrate and a connected refugium population. Diamond Watchman Goby uses shallow burrows that are buried in the substrate to provide refuge and keep the substrate adequately oxygenated. It does not usually become aggressive with other fish, however, it is territorial and fights with its own species unless they're a mated pair.
Large, Medium, Small
6 lbs


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Is hiring a professional necessary to set up a saltwater aquarium?

As a general rule, a larger custom aquarium might require installation by a professional. However, a kit from our online fish store is relatively affordable and beginner friendly. That means you should have no problem setting it up yourself.

Which saltwater aquarium fish should you choose when starting out?

Consider a yellow tang fish. This popular saltwater aquarium fish does a great job of coexisting with other types of fish you’ll find in our online fish store.

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Saltwater aquariums require a bit more maintenance and monitoring than freshwater tanks. Different fish require different levels of salinity, pH tolerances, and temperature requirements. They also require specialized pumps, filters, and other equipment that can handle salt. We can guide you through everything you need to know to set up a healthy, thriving reef tank.

Do fish in a saltwater aquarium swim in a school?

That depends on the species. However, if it’s a fish that swims in a school in the wild, they’ll do the same in an aquarium. Some fish that swim in schools include the green and blue chromis, cardinalfish, and dartfish, for example. When ordering from an online fish store, make sure you do your research on how specific fish species behave to ensure they’ll school (or at least coexist) with your current fish.

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Yes! Many aquarists dream of owning thriving saltwater aquariums. You have a tiny piece of the ocean in your home, featuring magical and exotic fish that can only survive in saltwater.