{"product_id":"fluval-hang-on-breeding-boxes","title":"Fluval Hang-On Breeding Boxes","description":"\u003cp\u003eThe \u003cstrong\u003eFluval Hang-On Breeding Box\u003c\/strong\u003e gives you a safe, separate space right on the side of your aquarium to raise fry, protect pregnant livebearers, isolate a sick or bullied fish, or acclimate new arrivals. It hangs on the outside of the tank and uses gentle air-driven circulation to pull in your aquarium's own heated, filtered water, so the temperature and water quality inside always match the main tank. It works on both freshwater and saltwater aquariums and comes in two sizes: a Medium single-chamber box and a Large box that divides into up to three chambers.\u003c\/p\u003e\n\u003cp\u003eBecause it runs on air, pair it with an air pump and airline from our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/air-pumps-accessories\"\u003eair pumps and accessories\u003c\/a\u003e, add a \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hikari-airline-check-valves-2-pack-aquarium-air-pump\"\u003eHikari check valve\u003c\/a\u003e to protect the pump, and keep \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/repashy-spawn-grow-conditioning-gel\"\u003eRepashy Spawn \u0026amp; Grow\u003c\/a\u003e on hand to condition breeders and feed developing fry. Ideal for breeding \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/fresh-water\"\u003elivebearers like guppies, mollies, and platies\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3 style=\"margin:16px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eChoose Your Size\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;margin:6px 0;font-size:0.95em;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;text-align:left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;text-align:left;\"\u003eMedium Single\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;text-align:left;\"\u003eLarge Multi Chamber\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;text-align:left;\"\u003eVolume\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e0.3 US Gal (1.1 L)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e0.5 US Gal (1.9 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;text-align:left;\"\u003eChambers\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eSingle open chamber\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eUp to 3 divided chambers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;text-align:left;\"\u003eWater circulation\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eAir-driven\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eAir-driven\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;text-align:left;\"\u003eMounting\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eHangs on tank rim (external)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eHangs on tank rim (external)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;text-align:left;\"\u003eBest for\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eOne batch of fry or one isolated fish\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eSeveral batches or separating multiple fish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:16px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHang-on external design keeps it out of the tank and saves swimming space inside\u003c\/li\u003e\n\u003cli\u003eAir-driven circulation constantly exchanges water with the main tank, so temperature and water chemistry stay matched\u003c\/li\u003e\n\u003cli\u003eClear walls make it easy to watch fry and monitor an isolated fish\u003c\/li\u003e\n\u003cli\u003eBuilt-in fry zone lets newborns settle safely away from the current\u003c\/li\u003e\n\u003cli\u003eAdjust the air flow to keep the water movement gentle for delicate fry\u003c\/li\u003e\n\u003cli\u003eWorks on both freshwater and saltwater aquariums\u003c\/li\u003e\n\u003cli\u003eLarge model includes removable dividers to create up to three separate chambers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:16px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003eThe box hooks over the rim of your aquarium on the outside. An air pump (sold separately) feeds air into the lift tube, which draws water up from your tank, circulates it through the box, and returns it. Since the water comes straight from your main aquarium, it stays at the same temperature and quality as the display, which is far safer for fry and stressed fish than a separate, unheated container. Dial the air flow down to keep the current gentle for newborns, or up for stronger turnover.\u003c\/p\u003e\n\u003ch3 style=\"margin:16px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eWhich Size Is Right for You?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium Single (0.3 gal):\u003c\/strong\u003e a single livebearer giving birth, one batch of fry, or isolating one small fish. Compact footprint for smaller tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Multi Chamber (0.5 gal):\u003c\/strong\u003e raise or grow out several fish at once, separate an aggressive individual, or keep different batches of fry apart using the up-to-three-chamber dividers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:16px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/air-pumps-accessories\"\u003eAir pumps and accessories\u003c\/a\u003e, required to run the box since it is air-driven\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hikari-airline-check-valves-2-pack-aquarium-air-pump\"\u003eHikari Airline Check Valves\u003c\/a\u003e, keep water from back-siphoning into your air pump\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/repashy-spawn-grow-conditioning-gel\"\u003eRepashy Spawn \u0026amp; Grow Conditioning Gel\u003c\/a\u003e, conditions breeders and feeds developing fry\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/fresh-water\"\u003eFreshwater livebearers\u003c\/a\u003e such as guppies, mollies, and platies, the classic fish to breed in these boxes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/nutrition\"\u003eFish food and nutrition\u003c\/a\u003e for growing out young fish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:16px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need an air pump?\u003c\/strong\u003e Yes. The box is air-driven, so you will need an air pump and airline tubing, both sold separately. A check valve is strongly recommended to protect the pump.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it in saltwater?\u003c\/strong\u003e Yes. It circulates your tank water and works in both freshwater and marine aquariums.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need its own heater?\u003c\/strong\u003e No. It continuously pulls in your aquarium's already-heated water, so the inside stays at tank temperature.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the two sizes?\u003c\/strong\u003e The Medium is a single 0.3 gallon chamber. The Large is 0.5 gallon and divides into up to three chambers, so you can separate multiple fish or batches of fry.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Medium Single","offer_id":48910561214683,"sku":"10942","price":16.99,"currency_code":"USD","in_stock":true},{"title":"Large Multi Chamber","offer_id":48910561247451,"sku":"10943","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_da3429f2-0e06-4257-aff4-d34d85ef6f84.jpg?v=1782478417","url":"https:\/\/squeakysaquatics.com\/products\/fluval-hang-on-breeding-boxes","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}