{"product_id":"ahj-aquarium-heater-500w-for-75-120-gallons-accurate-temperature-control-auto-shut-off","title":"AHJ Aquarium Heater 500W for 75–120 Gallons | Accurate Temperature Control \u0026 Auto Shut-Off","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eDesigned for larger home aquariums, the AHJ Aquarium Heater delivers dependable warmth for tanks around 75 to 120 gallons with a 500W rating. Its integrated PID temperature chip is directly connected to the nickel-chromium heating element, allowing the thermostat and heater to sense water temperature quickly and regulate it with precision. Expect a more consistent, comfortable environment for your fish, bettas, turtles, and other aquatic life.\u003c\/p\u003e\n\u003ch2\u003eKey benefits at a glance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAccurate temperature control ±1 °F ensures water stays near the target setting, reducing temperature swings.\u003c\/li\u003e\n  \u003cli\u003eExternal controller allows adjustments without wetting hands; red LED indicates heating and blue LED indicates constant temperature.\u003c\/li\u003e\n  \u003cli\u003eFast heat up and stable operation help reach and maintain the desired warmth efficiently.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSmart safety you can rely on\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eOverheat protection, over-temperature, and dry-run safeguards protect the tank and inhabitants.\u003c\/li\u003e\n  \u003cli\u003eIf the water is missing or the temperature exceeds 94 °F, the LCD displays HH and flashes to remind you to check.\u003c\/li\u003e\n  \u003cli\u003eAuto-shutoff engages when no water is detected, preventing dry burning scenarios.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBuild quality and design\u003c\/h2\u003e\n\u003cp\u003eThe heater is submersible with a thick quartz tube and a protective case designed to deter algae buildup and accidental contact. A long 1.5 m (4.75 ft) UL-certified cable supports flexible installation while keeping the unit safely away from delicate fish.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThe quartz tube and protective housing help minimize contact with small fish and keep the glass surface clean.\u003c\/li\u003e\n  \u003cli\u003eSaltwater and freshwater rated to support mixed or dedicated setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSetup, test, and warranty\u003c\/h2\u003e\n\u003cp\u003eTo ensure reliability, AHJ subjects each unit to a 72-hour in-water test before shipping. If you are unsure which wattage fits your tank, measure the tank internal dimensions (L x W x H) to estimate volume, and contact our support team for guidance. The product includes a 12-month warranty and accessible after-sales service to address questions or concerns.\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 saltwater and freshwater tanks?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the AHJ heater supports both saltwater and freshwater setups. For sizing, check your tank volume and contact support if unsure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I know which watt size to choose?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: For 75–120 gallon tanks, 500W is recommended. Measure tank dimensions to estimate volume and consult support if unsure.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AHJ","offers":[{"title":"Default Title","offer_id":40564980023425,"sku":"B0CKQNP7GN","price":68.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0598\/4757\/3633\/files\/ahj-aquarium-heater-external-controller.jpg?v=1765967673","url":"https:\/\/petiva.ca\/products\/ahj-aquarium-heater-500w-for-75-120-gallons-accurate-temperature-control-auto-shut-off","provider":"Petiva","version":"1.0","type":"link"}