{"product_id":"mq-submersible-aquarium-heater-300w-with-lcd-thermometer-auto-thermostat-blast-proof-safe-for-fresh-saltwater","title":"MQ Submersible Aquarium Heater 300W with LCD Thermometer – Auto Thermostat, Blast-Proof \u0026 Safe for Fresh \u0026 Saltwater","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eMeet the MQ Submersible Aquarium Heater, a compact 300W solution designed to nurture a stable aquatic climate in mid to large tanks. Built to disappear into glass or acrylic aquariums, it blends quietly into your setup while delivering dependable warmth for your fish and plants.\u003c\/p\u003e\n\u003ch3\u003eFit and Form\u003c\/h3\u003e\n\u003cp\u003eEngineered for 30–60 gallon tanks, this heater runs on 110–120V with a practical 5 ft power cord. It ships with a detachable shield and two suction cups, letting you securely position the unit out of sight for a cleaner, more immersive viewing experience.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDetachable shield helps with discreet placement\u003c\/li\u003e\n  \u003cli\u003eTwo suction cups provide stable mounting on glass or acrylic walls\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAccurate Temperature Control\u003c\/h3\u003e\n\u003cp\u003eSet precise temperatures from 68 to 94°F using simple dial increments. Commonly used set-points include 68, 71, 75, 78, 82, 86, 90 and 94, enabling a tight 2°F variance to maintain a steady environment.\u003c\/p\u003e\n\u003ch3\u003eSafety and Reliability\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAutomatic safety protection holds the water near the set temperature, pausing heating when it rises about 1.5–2°F above target and resuming when it falls 1.5–2°F below\u003c\/li\u003e\n  \u003cli\u003eConstructed with shock‑resistant quartz glass and a double sealed case for blast‑proof protection and reduced leakage risk\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMonitoring Made Easy\u003c\/h3\u003e\n\u003cp\u003eAn included extra thermometer helps you verify the current tank temperature, reducing guesswork and helping you prevent overheating or excessive cooling in your tank.\u003c\/p\u003e\n\u003ch3\u003eVersatility and Use\u003c\/h3\u003e\n\u003cp\u003eDesigned for both freshwater and saltwater environments, the heater supports a wide range of hobby setups. It’s suitable for quietly maintaining a warm habitat as your tank inhabitants grow and thrive.\u003c\/p\u003e\n\u003ch3\u003eReal-Life Scenarios\u003c\/h3\u003e\n\u003cp\u003eIn a 40‑gallon community tank, this heater can sustain a consistent tropical temperature, supporting active feeding and vibrant color without drama. For mixed reefs or marine tanks, it provides reliable warmth while you monitor readings and maintain water chemistry with care.\u003c\/p\u003e\n\u003cp\u003eWith its blend of dependable temperature control, protective design, and easy installation, the MQ heater offers a practical approach to preserving a stable, inviting aquatic environment without demanding constant adjustment.\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: Is this heater suitable for both freshwater and saltwater tanks?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The MQ 300W submersible heater is designed for fresh and saltwater aquariums.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the package include a thermometer for temperature monitoring?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. An extra thermometer is included to help monitor tank temperature.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MQ","offers":[{"title":"Default Title","offer_id":40565577285761,"sku":"B07WDNWVTW","price":57.68,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0598\/4757\/3633\/files\/mq-submersible-heater-front-view.jpg?v=1766003824","url":"https:\/\/petiva.ca\/products\/mq-submersible-aquarium-heater-300w-with-lcd-thermometer-auto-thermostat-blast-proof-safe-for-fresh-saltwater","provider":"Petiva","version":"1.0","type":"link"}