{"product_id":"usb-mini-aquarium-heater-submersible-thermostat-constant-temperature-fish-tank","title":"USB Mini Aquarium Heater 10W – 26°C Constant Temp Submersible","description":"\n\u003ch2\u003eKeep Your Fish Tank at the Perfect Temperature — Automatically\u003c\/h2\u003e\n\u003cp\u003eThe HOMEFISH USB Mini Aquarium Heating Rod is a compact, submersible thermostat heater designed for small fish tanks, turtle enclosures, and pet water dispensers. At just 8.5 cm long — roughly the size of your thumb — it delivers reliable 26°C constant temperature heating for up to 2.5L of water, powered conveniently via a standard USB port. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomatic Constant Temperature:\u003c\/strong\u003e Maintains a steady 26°C with built-in high-temperature protection — no manual adjustments needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUSB Powered:\u003c\/strong\u003e Connects directly to a mobile phone charger (5V 2A) or a power bank for flexible placement anywhere in your home.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExplosion-Proof Quartz Material:\u003c\/strong\u003e Safe, durable quartz glass construction gives you peace of mind while keeping your aquatic pets comfortable.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Compact Design:\u003c\/strong\u003e The 52 mm heating element fits neatly into small tanks without cluttering your aquascape.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorks in as Little as 2 cm of Water:\u003c\/strong\u003e Suitable for fresh water, saltwater tanks, turtle habitats, and pet water feeders.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndicator Lights:\u003c\/strong\u003e Red light signals active heating; green light indicates the set temperature of 26°C has been reached and the heater has paused — no digital screen needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMain Body Size:\u003c\/strong\u003e 8.5 × 1.8 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Cord Length:\u003c\/strong\u003e 1.2 m\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Setting:\u003c\/strong\u003e 26°C (constant)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 10W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput:\u003c\/strong\u003e 5V 2A (USB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e Up to approx. 2.5L water capacity\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Environments:\u003c\/strong\u003e Freshwater, saltwater, pet feeders\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Usage Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways use a \u003cstrong\u003e5V 2A charger\u003c\/strong\u003e for power supply — insufficient current will prevent proper heating.\u003c\/li\u003e\n  \u003cli\u003eThis heater is optimized for approximately \u003cstrong\u003e2L–2.5L\u003c\/strong\u003e water capacity.\u003c\/li\u003e\n  \u003cli\u003eFor larger tanks (e.g. 4L), you may use \u003cstrong\u003etwo heaters simultaneously\u003c\/strong\u003e — but each must be connected to its own USB port\/charger for best results. Do not run two heaters from one multi-port charger at the same time.\u003c\/li\u003e\n  \u003cli\u003eThis product does \u003cstrong\u003enot\u003c\/strong\u003e include an LED screen or digital temperature display.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-piece-storage-tray-360-degree-refrigerator-storage-rotating-tray-used-for-kitchen-spice-jars-and-sundry-storage-turntable-1\"\u003e360° Rotating Storage Tray – Great for Organizing Your Pet Supplies\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-thick-memory-sponge-floor-mat-160g-slow-rebound-absorbent-non-slip-bathroom-kitchen-foot-mat-for-home\"\u003eNon-Slip Bathroom \u0026amp; Kitchen Floor Mat\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-foldable-food-cover-vegetable-cover-dining-table-cover-vegetable-umbrella-fly-and-dust-cover\"\u003eFoldable Food \u0026amp; Table Cover – Keep Things Clean Around Your Tank\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.fws.gov\/\" target=\"_blank\" rel=\"noopener\"\u003eU.S. Fish and Wildlife Service\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What size fish tank is the USB Mini Aquarium Heater suitable for?\u003c\/h4\u003e\n\u003cp\u003eA: This submersible aquarium heater is designed for small fish tanks and pet water dispensers with approximately 2L–2.5L of water capacity. For tanks up to 4L, you can use two heaters simultaneously, each connected to its own dedicated USB charger or power source.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the aquarium heater have a digital temperature display?\u003c\/h4\u003e\n\u003cp\u003eA: No, this heater does not feature an LED screen or digital display. It uses a simple indicator light system: a red light shows it is actively heating, and a green light indicates the water has reached the constant set temperature of 26°C and the heater has automatically paused.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I power this fish tank heater with a power bank?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The USB plug is compatible with any standard 5V 2A USB power source, including mobile phone chargers and power banks. Just make sure your charger meets the 5V 2A specification — a lower-current charger may result in insufficient heating.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this heater safe to use in saltwater aquariums?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, the HOMEFISH Mini Heating Rod is made from explosion-proof quartz glass material and can be used safely in both freshwater and saltwater fish tanks, as well as turtle habitats and pet water feeders.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What size fish tank is the USB Mini Aquarium Heater suitable for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This submersible aquarium heater is designed for small fish tanks and pet water dispensers with approximately 2L–2.5L of water capacity. 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