{"product_id":"dreyoo-2-pack-submersible-aquarium-heater-300w-adjustable-thermostat-for-40-55-gal-tanks-4-thermometer-stickers-suction-cups","title":"Dreyoo 2-Pack Submersible Aquarium Heater 300W – Adjustable Thermostat for 40–55 Gal Tanks + 4 Thermometer Stickers \u0026 Suction Cups","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eMeet the Dreyoo 2-Pack Submersible Aquarium Heater. Designed for mid-to-large tanks, each 11-inch heater delivers dependable warmth in 40–55 gallon setups. The 300W rating provides ample headroom for tropical freshwater environments and many marine aquariums, while the two-pack format gives you a spare or the option to heat a larger system with consistent results.\u003c\/p\u003e\n\u003cp\u003eWith a focus on practical, in-tank performance, these heaters blend into the background behind décor while supplying steady warmth where your fish and plant life need it most. This isn’t a guarantee, but it’s a setup that aims to support a stable water climate when used as intended.\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 x 300W submersible aquarium heaters\u003c\/li\u003e\n  \u003cli\u003e4 aquarium thermometer stickers\u003c\/li\u003e\n  \u003cli\u003eSeveral suction cups and a 5 ft power cord (110–120V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSmart temperature control\u003c\/h3\u003e\n\u003cp\u003eEach heater offers a precise temperature range from 68 to 93 °F, enabling control within about a 1-degree margin. A red indicator light shows when heating is active, and the unit automatically shuts off when the target temperature is reached, helping to maintain a stable environment for aquatic life.\u003c\/p\u003e\n\n\u003ch3\u003eEasy-to-read temperature readouts\u003c\/h3\u003e\n\u003cp\u003eThe included thermometer stickers cover 39–97 °F (4–36 °C). They use color indication to show current readings at a glance, so you can monitor water warmth without extra tools.\u003c\/p\u003e\n\n\u003ch3\u003eDurable, versatile design\u003c\/h3\u003e\n\u003cp\u003eConstructed with 2 mm thickened quartz glass, the heaters are designed for both freshwater and saltwater use. They’re slim enough to hide behind décor, yet rugged enough to withstand regular aquarium use.\u003c\/p\u003e\n\n\u003ch3\u003eHow to use\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAdjust the temperature first, then attach suction cups and fully submerge the heater.\u003c\/li\u003e\n  \u003cli\u003ePlug in and monitor the red heating indicator; the unit will auto-shut off when temperature is reached.\u003c\/li\u003e\n  \u003cli\u003eTo clean, power off and allow the heater to cool before removal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReal-world scenarios\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIdeal for 40–55 gallon freshwater tanks and many marine setups.\u003c\/li\u003e\n  \u003cli\u003eHidden behind décor to maintain a clean, uncluttered tank appearance.\u003c\/li\u003e\n  \u003cli\u003eTwo-unit setup offers flexibility for varying tank layouts or redundancy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCare and safety notes\u003c\/h3\u003e\n\u003cp\u003eAlways ensure the heater is fully immersed before operation and properly secured with suction cups. Use the temperature readings as a guide and avoid abrupt changes that could stress aquatic residents.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What tank size is the Dreyoo 300W heater best for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Best for 40–55 gallon aquariums; adjust quantity for other sizes as needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I install and maintain the heater?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fully submerge, set the temperature first, secure with suction cups, plug in, and unplug before cleaning.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Dreyoo","offers":[{"title":"Default Title","offer_id":53555624411465,"sku":"B0BL1749DJ","price":35.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/1781\/9465\/files\/dreyoo-two-pack-submersible-aquarium-heater-300w.jpg?v=1766358837","url":"https:\/\/petvita.co.uk\/products\/dreyoo-2-pack-submersible-aquarium-heater-300w-adjustable-thermostat-for-40-55-gal-tanks-4-thermometer-stickers-suction-cups","provider":"Petvita","version":"1.0","type":"link"}