{"product_id":"rainbow-shark-epalzeorhynchos-frenatum-freshwater","title":"Rainbow Shark (Epalzeorhynchos frenatum)","description":"\u003cdiv style=\"background:#E3F2FD;border-left:4px solid #1E88E5;padding:10px 14px;margin:0 0 14px;font-size:0.95em;\"\u003e\n\u003cstrong\u003eIn-store pickup only.\u003c\/strong\u003e Pick up at \u003cstrong\u003e1885 Braselton Hwy, Suite D, Lawrenceville, GA\u003c\/strong\u003e.\u003cbr\u003e\nYour order is reserved — we hold off on bagging until you arrive, so it stays healthy in its display tank.\n\u003c\/div\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRainbow Shark\u003c\/strong\u003e (\u003cem\u003eEpalzeorhynchos frenatum\u003c\/em\u003e) is a bold, jet-black freshwater \"shark\" from Thailand with fiery red-orange fins — a showstopper for medium and large aquariums. Despite the name, it's not a true shark; it's a freshwater cyprinid that patrols the bottom and lower mid-water, claiming territory and adding constant motion to your display. Best for \u003cstrong\u003eintermediate\u003c\/strong\u003e keepers who can give it space and the right tank mates. Each fish is hand-picked from our display systems at \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/fresh-water\"\u003eSqueaky's Aquatics\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eRainbow Sharks shine in fast-moving community tanks — pair them with active mid- and top-dwellers like \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/zebra-danio-danio-rerio-freshwater\"\u003eZebra Danios\u003c\/a\u003e, larger tetras such as \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/black-skirt-tetra-gymnocorymbus-ternetzi-freshwater\"\u003eBlack Skirt Tetras\u003c\/a\u003e, or a \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/dwarf-gourami-male-trichogaster-lalius-freshwater\"\u003eDwarf Gourami\u003c\/a\u003e. Browse our full \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/fish\"\u003efreshwater fish collection\u003c\/a\u003e for more compatible community fish.\u003c\/p\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eCare Guide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCare Level:\u003c\/strong\u003e Intermediate — hardy and easy to feed, but territorial behavior requires careful stocking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank Size:\u003c\/strong\u003e 55+ gallons recommended for an adult, with a long footprint (48\"+) so the shark has territory to patrol without crowding tank mates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Temperature:\u003c\/strong\u003e 72–79°F (22–26°C).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH:\u003c\/strong\u003e 6.5–7.5 — tolerates a wide neutral range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e 5–15 dGH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiet:\u003c\/strong\u003e Omnivore. Feed sinking pellets like \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hikari-cichlid-gold-pellet\"\u003eHikari Cichlid Gold\u003c\/a\u003e, algae wafers, and blanched veggies (zucchini, spinach), with occasional frozen brine shrimp or bloodworms for protein. They'll graze algae and biofilm off décor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifespan:\u003c\/strong\u003e 5–8 years with good care.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDécor:\u003c\/strong\u003e Provide multiple caves and hides — \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/zoomed-betta-mopani-wood-natural-african-driftwood\"\u003edriftwood\u003c\/a\u003e, \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hikari-texas-holey-rock-resin-cichlid-cave\"\u003erock caves\u003c\/a\u003e, and dense plants break sightlines and reduce aggression. Sand or smooth gravel substrate is best.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e Strong filtration with gentle current; they appreciate well-oxygenated water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLid required:\u003c\/strong\u003e Yes — Rainbow Sharks are powerful swimmers and can jump.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;max-width:520px;font-size:0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eCommon Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eRainbow Shark (Ruby Shark, Red-Fin Shark)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eScientific Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cem\u003eEpalzeorhynchos frenatum\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eFamily\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eCyprinidae\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eMekong \u0026amp; Chao Phraya river basins, Southeast Asia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eMax Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e~6 inches (15 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eTemperament\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eSemi-aggressive, territorial — one per tank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eSwimming Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eBottom and lower mid-water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003ePlant Safe\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eGenerally plant-safe — grazes algae but doesn't typically eat healthy plants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eWater Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eFreshwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOne Rainbow Shark per tank.\u003c\/strong\u003e Same-species aggression is intense — adults will fight to the death over territory. The only exception is very large, heavily aquascaped tanks (75+ gallons with extensive sightline breaks), and even then it's risky.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood tank mates:\u003c\/strong\u003e fast active mid- and top-dwelling community fish that stay out of the bottom zone — \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/zebra-danio-danio-rerio-freshwater\"\u003eZebra Danios\u003c\/a\u003e, giant danios, larger tetras like \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/black-skirt-tetra-gymnocorymbus-ternetzi-freshwater\"\u003eBlack Skirts\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/bleeding-heart-tetra-hyphessobrycon-erythrostigma-freshwater\"\u003eBleeding Hearts\u003c\/a\u003e, rainbowfish, larger barbs (tiger, cherry), \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/dwarf-gourami-male-trichogaster-lalius-freshwater\"\u003egouramis\u003c\/a\u003e, and rainbowfish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAvoid:\u003c\/strong\u003e other Rainbow Sharks, Red-tailed Black Sharks, plecos, loaches, Corydoras, and any other bottom-dwelling fish (the Rainbow Shark will harass them out of its territory). Skip slow long-finned fish like bettas — they're easy targets for fin nipping. Don't pair with small timid fish that won't hold their own.\u003c\/p\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eRecommended Foods \u0026amp; Supplies\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hikari-cichlid-gold-pellet\"\u003eHikari Cichlid Gold Pellet\u003c\/a\u003e — high-quality sinking pellet, perfect staple for Rainbow Sharks.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hikari-texas-holey-rock-resin-cichlid-cave\"\u003eHikari Texas Holey Rock Cave\u003c\/a\u003e — gives the shark a defendable territory and breaks sightlines.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/zoomed-betta-mopani-wood-natural-african-driftwood\"\u003eMopani Driftwood\u003c\/a\u003e — natural-looking hardscape for hides and biofilm grazing.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-prime-complete-concentrated-water-conditioner\"\u003eSeachem Prime\u003c\/a\u003e — conditions tap water and detoxifies ammonia between water changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/nutrition\"\u003eBrowse all fish foods\u003c\/a\u003e for sinking pellets, algae wafers, and frozen foods.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWill it attack my other fish?\u003c\/strong\u003e\u003cbr\u003e\nRainbow Sharks claim a bottom territory and will chase off anything that enters — especially other bottom dwellers. Active mid\/top-level fish usually get ignored because they're not \"in its zone.\" Aggression spikes during territorial disputes and at maturity (around 4 inches).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I keep two Rainbow Sharks together?\u003c\/strong\u003e\u003cbr\u003e\nNot recommended. Same-species aggression is severe and usually escalates to one fish killing the other. If you absolutely want a group, you need a 125+ gallon tank with heavy aquascaping and sightline breaks — and even then results vary.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat size will it grow to?\u003c\/strong\u003e\u003cbr\u003e\nAbout 6 inches (15 cm) at maturity, sometimes a touch larger in a big tank. They're surprisingly long — account for swimming room, not just gallons.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo they really eat algae?\u003c\/strong\u003e\u003cbr\u003e\nYes, but they're not dedicated algae eaters like otocinclus or plecos. Think of algae grazing as a bonus — feed a proper omnivore diet to keep them healthy and colorful.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre albino Rainbow Sharks different?\u003c\/strong\u003e\u003cbr\u003e\nSame species, just a color morph (white body, red fins). Same care requirements, same temperament — and yes, they will fight each other and standard Rainbow Sharks the same way.\u003c\/p\u003e","brand":"Squeaky's Aquatics","offers":[{"title":"Default Title","offer_id":48801637859547,"sku":"FW1-F7109","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/Fransenlipper.jpg?v=1779484295","url":"https:\/\/squeakysaquatics.com\/products\/rainbow-shark-epalzeorhynchos-frenatum-freshwater","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}