{"product_id":"small-fish-tank-heater-50w-preset-78f","title":"Small Fish Tank Heater 50W, Mini Submersible Aquarium Heater Preset to 78°F for 1-10 Gallon Tanks, 4.5-Inch Design with Thermometer Strip","description":"\u003ch2\u003eSmall Fish Tank Heater with a Preset 78°F Setting\u003c\/h2\u003e\u003cp\u003eKeep your aquarium setup compact with this 50W mini submersible fish tank heater. At approximately 4.5 inches long, it is listed for 1-10 gallon freshwater and saltwater tanks and comes preset to 78°F. During your daily tank check, glance at the heating indicator and compare the thermometer reading with the needs of your aquarium inhabitants. Actual water temperature depends on tank conditions, so regular monitoring remains important.\u003c\/p\u003e\u003ch2\u003eCompact Features for Daily Aquarium Care\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e🌡️ \u003cstrong\u003ePreset to 78°F:\u003c\/strong\u003e A fixed temperature setting without a user-adjustable temperature dial.\u003c\/li\u003e\n\u003cli\u003e💧 \u003cstrong\u003e50W submersible design:\u003c\/strong\u003e Listed for 1-10 gallon aquariums; fully submerge before connecting power.\u003c\/li\u003e\n\u003cli\u003e📏 \u003cstrong\u003eApproximately 4.5 inches long:\u003c\/strong\u003e A compact format that takes up less space in a small tank.\u003c\/li\u003e\n\u003cli\u003e🔴 \u003cstrong\u003eHeating status indicator:\u003c\/strong\u003e Red indicates heating; green indicates the heater is idle.\u003c\/li\u003e\n\u003cli\u003e📦 \u003cstrong\u003eIncluded setup accessories:\u003c\/strong\u003e Supplied with one suction cup and one thermometer strip.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eMini submersible aquarium heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePower\u003c\/th\u003e\n\u003ctd\u003e50W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eListed tank capacity\u003c\/th\u003e\n\u003ctd\u003e1-10 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePreset temperature\u003c\/th\u003e\n\u003ctd\u003e78°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLength\u003c\/th\u003e\n\u003ctd\u003eApproximately 4.5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWater compatibility\u003c\/th\u003e\n\u003ctd\u003eFreshwater and saltwater tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eIndicator\u003c\/th\u003e\n\u003ctd\u003eRed when heating; green when idle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePackage contents\u003c\/th\u003e\n\u003ctd\u003e1 x 50W heater, 1 x suction cup, 1 x thermometer strip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePower supply\u003c\/th\u003e\n\u003ctd\u003ePlug-in operation; not battery-powered. Confirm voltage and plug compatibility on the supplied label.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this heater suitable for a betta aquarium?\u003c\/strong\u003e\u003cbr\u003eA: It is listed for 1-10 gallon tanks and preset to 78°F. Confirm that this setting suits your fish and monitor the actual water temperature. The heater's listed capacity does not establish an appropriate habitat size for any species.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use this heater in freshwater and saltwater tanks?\u003c\/strong\u003e\u003cbr\u003eA: Both are listed uses. Position the heater where water circulates well, follow the supplied manual and check temperature regularly. Tank size, room temperature and circulation affect performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this a practical gift for an aquarium owner?\u003c\/strong\u003e\u003cbr\u003eA: It can be an aquarium-care gift when the recipient confirms their tank capacity, livestock temperature needs and electrical compatibility. Check these details before selecting it for a birthday or Christmas gift.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I install and safely remove the aquarium heater?\u003c\/strong\u003e\u003cbr\u003eA: Follow the supplied manual, use the suction cup and fully submerge the heater before connecting power. Unplug it before aquarium maintenance or removal, then wait at least 10 minutes before taking it out of the water. Never operate it dry.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Does it include a thermometer, and can I adjust the temperature?\u003c\/strong\u003e\u003cbr\u003eA: It includes a thermometer strip and one suction cup. The heater is preset to 78°F rather than offering an adjustable temperature setting. The indicator shows heating status, not a measured water temperature.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this a STEM kit or a children's aquarium toy?\u003c\/strong\u003e\u003cbr\u003eA: No. It is electrical aquarium equipment, not a toy or STEM activity kit. An adult should manage installation, electrical connections and maintenance; observation of aquarium temperature is not a substitute for safe operation.\u003c\/p\u003e\u003ch2\u003eFast US Shipping\u003c\/h2\u003e\u003cp\u003eShips from US warehouse, free delivery 2-7 business days\u003c\/p\u003e","brand":"Goodie Pet","offers":[{"title":"50W（Fits 1–10 gallon fish tanks）","offer_id":50601425797360,"sku":null,"price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0308\/0176\/files\/6a5f962055664189b2cee1c4b9221e35-goods.jpg?v=1791728741","url":"https:\/\/goodiepet.com\/products\/small-fish-tank-heater-50w-preset-78f","provider":"Goodie Pet","version":"1.0","type":"link"}