{"product_id":"black-clown-goby-gobiodon-ceramensis-saltwater","title":"Black Clown Goby (Gobiodon ceramensis)","description":"\u003cdiv style=\"font-family:Georgia,serif;color:#1a1a1a;max-width:860px;line-height:1.7;\"\u003e\n\u003cdiv style=\"background:#E0F7FA;border-left:4px solid #006064;padding:10px 14px;margin:0 0 14px;font-size:0.95em;\"\u003e\n\u003cstrong\u003eIn-store pickup only.\u003c\/strong\u003e Your order is reserved, we hold off on bagging until you arrive so it stays healthy in its display tank.\n\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eBlack Clown Goby\u003c\/strong\u003e (\u003cem\u003eGobiodon ceramensis\u003c\/em\u003e) is the sleek, understated member of the clown goby family: a thumbnail-sized, round-headed fish in solid charcoal to jet black that spends its life perched in coral branches, watching the tank with big curious eyes. Where its yellow and citron cousins pop, this one reads as a crisp silhouette against green and blue corals, with the same oversized personality packed into a body that stays under 2 inches. Peaceful, hardy, and happy in a nano reef. Browse the rest of our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/salt-water\"\u003esaltwater livestock and supplies\u003c\/a\u003e and our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/corals\"\u003ecoral collection\u003c\/a\u003e to give it a branching coral to call home.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #006064;padding-left:8px;\"\u003eCare Guide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank size:\u003c\/strong\u003e 10 gallons or larger. It barely swims, it hops from perch to perch, so it is a natural fit for nano and pico reefs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGive it a perch:\u003c\/strong\u003e in the wild clown gobies live their whole lives among the branches of stony corals like \u003cem\u003eAcropora\u003c\/em\u003e. At home a branching coral, a frag rack edge, or a rock ledge near the front works. Without a favorite perch it tends to hide.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater parameters:\u003c\/strong\u003e 72 to 78°F, pH 8.1 to 8.4, salinity 1.020 to 1.026. Stable reef conditions matter more than exact numbers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeeding:\u003c\/strong\u003e micro-carnivore. Offer small meaty foods like baby brine shrimp, finely chopped mysis, and copepods once or twice a day. If it shares the tank with fast eaters, target feed near its perch so food reaches it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoral caution:\u003c\/strong\u003e clown gobies perch on SPS, and they can nip \u003cem\u003eAcropora\u003c\/em\u003e polyps. A spawning pair will also clear a small patch of coral tissue to lay eggs, which leaves a spot of recession. Harmless in a soft coral or LPS tank, worth knowing in an SPS-heavy one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToxic mucus:\u003c\/strong\u003e clown gobies coat themselves in a bitter skin toxin that makes predators spit them out. It is a defense, not a hazard to you or your tank.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #006064;padding-left:8px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;max-width:640px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eScientific name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\n\u003cem\u003eGobiodon ceramensis\u003c\/em\u003e (the trade name also covers near-identical all-black \u003cem\u003eGobiodon\u003c\/em\u003e)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eCommon names\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003eBlack Clown Goby, Black Coral Goby, Ceram Clown Goby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003eIndo-Pacific reefs, imported through Southeast Asia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eCare level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003eBeginner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eTemperament\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003ePeaceful\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eReef safe\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003eWith caution around SPS, see Care Guide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eMax size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003eAbout 1.5 to 2 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eMinimum tank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e10 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e72 to 78°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003epH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e8.1 to 8.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eSalinity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e1.020 to 1.026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eDiet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003eCarnivore, small meaty foods\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003ePickup\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003eIn-store pickup at Squeaky's Aquatics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #006064;padding-left:8px;\"\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003ePeaceful toward everything and small enough that it only wants a quiet corner of the reef. Good tank mates include the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/ocellaris-clownfish-amphiprion-ocellaris-saltwater\"\u003eOcellaris Clownfish\u003c\/a\u003e, \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/royal-gramma-gramma-loreto-saltwater\"\u003eRoyal Gramma\u003c\/a\u003e, \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/firefish-goby-nemateleotris-magnifica-saltwater\"\u003eFirefish Goby\u003c\/a\u003e, \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/tailspot-blenny-ecsenius-stigmatura-saltwater\"\u003eTailspot Blenny\u003c\/a\u003e, and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/banggai-cardinalfish-pterapogon-kauderni-saltwater\"\u003eBanggai Cardinalfish\u003c\/a\u003e. If you want a splash of color alongside it, our \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/yellow-clown-goby-gobiodon-okinawae-saltwater\"\u003eYellow Clown Goby\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/citron-clown-goby-gobiodon-citrinus-saltwater\"\u003eCitron Clown Goby\u003c\/a\u003e make a great contrast, but give each its own perch, since clown gobies squabble over territory in tight quarters.\u003c\/p\u003e\n\u003cp\u003eAvoid anything with a mouth big enough to try: hawkfish, dottybacks, larger wrasses, lionfish, groupers, and triggers. The skin toxin discourages most predators, but a fish this small is not worth the gamble.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #006064;padding-left:8px;\"\u003eRecommended Foods \u0026amp; Supplies\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hikari-bio-pure-frozen-baby-brine-shrimp\"\u003eHikari Bio-Pure Frozen Baby Brine Shrimp\u003c\/a\u003e, sized right for a tiny mouth\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hikari-bio-pure-frozen-mysis-shrimp\"\u003eHikari Bio-Pure Frozen Mysis Shrimp\u003c\/a\u003e for the main meaty meal\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/reef-nutrition-arcti-pods\"\u003eReef Nutrition Arcti-Pods\u003c\/a\u003e, a fine copepod food it will snap up\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/selcon-vitamin-fish-food-supplement-60ml\"\u003eSelcon Vitamin Booster\u003c\/a\u003e to soak frozen foods\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/innovative-marine-accudrip-drip-acclimator\"\u003eInnovative Marine AccuDrip Acclimator\u003c\/a\u003e for a slow, low-stress introduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #006064;padding-left:8px;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich species is it exactly?\u003c\/strong\u003e\u003cbr\u003eAll-black clown gobies are notoriously hard to tell apart, and several near-identical \u003cem\u003eGobiodon\u003c\/em\u003e species are sold under this one name. The most common ID for fish from Southeast Asia is \u003cem\u003eGobiodon ceramensis\u003c\/em\u003e. Care, size, and behavior are the same across the group.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it damage my SPS corals?\u003c\/strong\u003e\u003cbr\u003eSometimes. It can nip \u003cem\u003eAcropora\u003c\/em\u003e polyps, and a spawning pair will clear a small patch of tissue to lay eggs. The damage is usually small and localized, but in a high-end SPS tank it is a real consideration. In soft coral and LPS tanks there is no issue.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I keep a pair?\u003c\/strong\u003e\u003cbr\u003eYes. Clown gobies pair readily, and two young fish of the same species will usually sort themselves into a male and female. A bonded pair shares a perch and may spawn on a coral branch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it eat frozen food?\u003c\/strong\u003e\u003cbr\u003eMost take small frozen foods within a few days. Offer tiny portions near its perch and it quickly learns where dinner comes from.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Squeaky's Aquatics","offers":[{"title":"Default Title","offer_id":49318855999707,"sku":"1186337","price":17.49,"currency_code":"USD","in_stock":false}],"url":"https:\/\/squeakysaquatics.com\/products\/black-clown-goby-gobiodon-ceramensis-saltwater","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}