{"product_id":"hygger-submersible-aquarium-heater-100w-300w-with-external-controller-led-display","title":"Hygger Submersible Aquarium Heater — 100W–300W with External Controller \u0026 LED Display","description":"\u003ch2\u003eCompact, versatile heater for small to mid-sized tanks\u003c\/h2\u003e\u003cp\u003eThe Hygger submersible aquarium heater brings dependable warmth to a slim 7.6 inch design. Available in 100W, 150W, 200W, and 300W, it suits a range of setups from freshwater communities to saltwater tanks and betta displays. By selecting the right wattage, you can tailor the heat to your tank and room conditions, reducing clutter and simplifying maintenance. This single unit is designed to blend into the aquarium while delivering steady, reliable warmth for daily life in your underwater world.\u003c\/p\u003e\n\u003cp\u003eWhether you keep a nano reef, a tropical community tank, or a small pond setup, this heater is meant to be a straightforward, dependable option that supports your aquarist routine without taking over the scene. Its compact profile helps it stay out of sight behind decor and plants while delivering consistent results when you need them most.\u003c\/p\u003e\n\u003ch3\u003eSmart control that keeps your tank stable\u003c\/h3\u003e\u003cp\u003eThe external temperature controller enables safe, hands-free adjustments. It shows two readings at a glance—current water temperature and the target temperature—making it easy to monitor progress while you observe your tank’s inhabitants. With a practical 59–93 °F range, you can fine-tune temperatures to suit different species and seasonal changes. The SET button provides quick access to switch between readings and confirm changes, so you can keep the focus on the fish and plants rather than fiddling with hardware.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExternal controller for safe adjustment without wet hands\u003c\/li\u003e\n  \u003cli\u003eLED display clearly shows current vs set temperature\u003c\/li\u003e\n  \u003cli\u003eWide temperature range to accommodate diverse setups\u003c\/li\u003e\n  \u003cli\u003eEasy switching between readings for quick tuning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuilt to withstand regular use\u003c\/h3\u003e\u003cp\u003eSafety and reliability are built into the design. The heater includes out-of-water protection that stops heating when water is not present, and overheating protection with fault signaling to alert you if something needs attention. When power returns after an interruption, the unit resumes at the last setting, avoiding sudden temperature shifts. The construction combines durable quartz glass with a nickel-chromium heating wire that efficiently converts electrical energy into heat and promotes uniform warmth across the water column.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOut-of-water protection with fault signaling\u003c\/li\u003e\n  \u003cli\u003eOverheat protection and last-setting memory\u003c\/li\u003e\n  \u003cli\u003eDurable quartz glass and efficient heating wire for longevity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePractical tips for selection and installation\u003c\/h3\u003e\u003cp\u003eChoose wattage based on tank volume, typical room temperature, and the desired stability for your aquatic inhabitants. Ensure the heater is fully submerged during operation and place the external controller within easy reach for quick adjustments. The red indicator denotes heating, while the green indicator signals a constant, target temperature, helping you interpret status at a glance. With proper setup, Hygger offers a simple path to a consistently comfortable environment for your fish, plants, and décor.\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 sizes is this heater suitable for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Available in 100W–300W models; each is designed for small to mid-sized aquariums; check the wattage and the size chart to pick the right fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do the safety features work?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The external controller shows current and set temps; automatic shutoff out of water and overheating protection help maintain safe operation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"hygger","offers":[{"title":"Default Title","offer_id":57201960485241,"sku":"B0CJJ73MJT","price":35.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/8934\/1049\/files\/hygger-aquarium-heater-external-controller.jpg?v=1777812318","url":"https:\/\/petlyvox.com\/products\/hygger-submersible-aquarium-heater-100w-300w-with-external-controller-led-display","provider":"petlyvox","version":"1.0","type":"link"}