{"product_id":"spotted-coral-grouper","title":"Spotted Coral Grouper","description":"\u003cp\u003eThe Spotted Coral Grouper, \u003cem\u003ePlectropomus maculatus\u003c\/em\u003e, is a spectacular large predatory marine fish known for its elongated body, powerful build, and dense covering of brilliant blue spots. Base coloration can range from red and reddish-brown to olive, gray, or dark brown depending on age, condition, and surroundings. The numerous blue spots extending across the head, body, and fins create the vivid appearance associated with the coral trout group.\u003c\/p\u003e\n\u003cp\u003eNative to the Western Pacific, \u003cem\u003ePlectropomus maculatus\u003c\/em\u003e occurs from parts of Southeast Asia through Indonesia, Papua New Guinea, the Solomon Islands, and Australia. It is most often associated with protected coastal and inshore reefs containing a mixture of coral, rock, rubble, and algae. Juveniles frequently remain close to shallow reef structure, while larger fish become formidable predators capable of taking sizable fish and crustaceans.\u003c\/p\u003e\n\u003cp\u003eWith a maximum adult length approaching 49 inches, the Spotted Coral Grouper is a substantial saltwater fish requiring an exceptionally large marine aquarium. Its impressive coloration and confident predatory behavior make it a dramatic centerpiece for specialized predator displays, but its eventual size and feeding habits make it unsuitable for conventional community reef aquariums.\u003c\/p\u003e\n\u003ch2\u003eQuick Care Guide\u003c\/h2\u003e\n\u003cp\u003eCare Level: Expert Only\u003cbr\u003eMinimum Tank Size: 600 gallons\u003cbr\u003eTemperament: Predatory\u003cbr\u003eDiet: Carnivore\u003cbr\u003eReef Safe: With Caution\u003cbr\u003eRegion: Western Pacific\u003cbr\u003eScientific Name: \u003cem\u003ePlectropomus maculatus\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eTank Requirements\u003c\/h2\u003e\n\u003cp\u003eThe Spotted Coral Grouper requires an exceptionally large aquarium with extensive horizontal swimming room and substantial rockwork. Provide large caves, ledges, and overhangs where the fish can retreat while maintaining broad open areas for movement and feeding.\u003c\/p\u003e\n\u003cp\u003eRock structures should be extremely stable. As this grouper develops into a large, muscular adult, loosely positioned rocks and decorations can easily be displaced during normal swimming or feeding activity.\u003c\/p\u003e\n\u003cp\u003eA sand substrate is appropriate, although bare-bottom systems can also work well in predator-focused aquariums where ease of waste removal is a priority. The species does not require a specialized substrate.\u003c\/p\u003e\n\u003cp\u003ePowerful biological and mechanical filtration, efficient protein skimming, strong oxygenation, and consistent water changes are essential. A large carnivorous grouper consumes substantial amounts of protein-rich food and can create a considerable biological load.\u003c\/p\u003e\n\u003cp\u003eLong-term aquarium planning is critical. Juveniles may appear manageable when offered for sale, but this species can eventually exceed four feet in total length and should be housed with its adult dimensions in mind from the beginning.\u003c\/p\u003e\n\u003ch2\u003eDiet and Feeding\u003c\/h2\u003e\n\u003cp\u003eThe Spotted Coral Grouper is an obligate carnivore that naturally feeds on fish, crustaceans, squid, and other suitable marine prey.\u003c\/p\u003e\n\u003cp\u003eCaptive specimens should receive a varied selection of high-quality marine foods including shrimp, squid, clam, mussel, scallop, krill, and appropriately sized pieces of marine fish. Mysis shrimp and smaller chopped seafood are suitable for juveniles, while progressively larger food items can be offered as the fish grows.\u003c\/p\u003e\n\u003cp\u003eA varied seafood-based diet is preferable to relying heavily on one food item. Juveniles can receive smaller meals more frequently, while established adults can generally be fed substantial meals several times per week according to body condition.\u003c\/p\u003e\n\u003cp\u003eRoutine feeding of live feeder fish is unnecessary and should be avoided. Prepared marine seafood provides better control over nutrition while reducing the risk of introducing parasites or inappropriate freshwater-based foods.\u003c\/p\u003e\n\u003ch2\u003eTemperament and Tankmates\u003c\/h2\u003e\n\u003cp\u003eThe Spotted Coral Grouper is a powerful predator and should be housed only with tankmates too large to be swallowed. Even fish that coexist successfully with a juvenile may become prey as the grouper's mouth and body size increase.\u003c\/p\u003e\n\u003cp\u003eSuitable companions can include appropriately sized large tangs, triggerfish, large angelfish, rabbitfish, robust wrasses, and other substantial marine predators or semi-aggressive fish. Tankmates should be chosen according to their adult size as well as their ability to compete during feeding.\u003c\/p\u003e\n\u003cp\u003eSmall clownfish, gobies, blennies, cardinalfish, chromis, anthias, damselfish, and other community-sized fish should be considered potential prey. Ornamental shrimp and many crabs are also at significant risk.\u003c\/p\u003e\n\u003cp\u003eThis species is naturally solitary and is generally best maintained as the only \u003cem\u003ePlectropomus\u003c\/em\u003e grouper unless the aquarium is exceptionally large and specifically designed for multiple large predators.\u003c\/p\u003e\n\u003ch2\u003eReef Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe Spotted Coral Grouper is reef safe with caution. It does not normally consume healthy coral tissue, so established coral colonies can potentially be maintained with the fish in an adequately sized system.\u003c\/p\u003e\n\u003cp\u003eThe primary concern is predation rather than coral feeding. Small and medium-sized fish, ornamental shrimp, crabs, and other suitably sized mobile invertebrates may be consumed.\u003c\/p\u003e\n\u003cp\u003eIts exceptional adult size also creates a physical risk to aquascaping. Large specimens can accidentally dislodge unsecured corals or rockwork while swimming, turning, or pursuing food. It is therefore best suited to a specialized predator reef or fish-only-with-live-rock aquarium rather than a conventional mixed community reef.\u003c\/p\u003e\n\u003ch2\u003eWater Parameters\u003c\/h2\u003e\n\u003cp\u003eTemperature: 75–80°F\u003cbr\u003eSpecific Gravity: 1.024–1.026\u003cbr\u003epH: 8.1–8.4\u003cbr\u003eAlkalinity: 8–12 dKH\u003c\/p\u003e\n\u003cp\u003eStable salinity, excellent oxygenation, powerful filtration, and consistently low accumulated waste are especially important for such a large predatory fish. Prioritize stability and water quality rather than attempting to maintain exact parameter values.\u003c\/p\u003e\n\u003ch2\u003eCommon Considerations\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExceptional adult size:\u003c\/strong\u003e This species can approach 49 inches and requires a truly massive aquarium for permanent housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStrong predatory instinct:\u003c\/strong\u003e Fish and crustaceans small enough to swallow should always be considered potential prey.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHeavy biological load:\u003c\/strong\u003e Large specimens require oversized filtration, efficient protein skimming, and disciplined aquarium maintenance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eJuveniles are deceptive:\u003c\/strong\u003e Small specimens grow into extremely large, powerful predators, so permanent housing must be planned before purchase.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSecure aquascaping:\u003c\/strong\u003e Large adults can easily disturb loosely positioned rocks, coral colonies, and aquarium decorations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TSA Fish","offers":[{"title":"S","offer_id":52442769850666,"sku":"GROUPERxSpotS","price":59.99,"currency_code":"USD","in_stock":false},{"title":"SM","offer_id":52442769883434,"sku":"GROUPERxSpotSM","price":73.99,"currency_code":"USD","in_stock":false},{"title":"M","offer_id":52442769916202,"sku":"GROUPERxSpotM","price":109.99,"currency_code":"USD","in_stock":false},{"title":"ML","offer_id":52442769948970,"sku":"GROUPERxSpotML","price":143.99,"currency_code":"USD","in_stock":false},{"title":"L","offer_id":52442769981738,"sku":"GROUPERxSpotL","price":194.99,"currency_code":"USD","in_stock":true},{"title":"XL","offer_id":52442770014506,"sku":"GROUPERxSpotX","price":251.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/SpottedCoralGrouper_88e5b8c6-dfcb-41b6-914c-e18b60154365.png?v=1788283901","url":"https:\/\/topshelfaquatics.com\/products\/spotted-coral-grouper","provider":"Top Shelf Aquatics ","version":"1.0","type":"link"}