Smart USB Aquarium Heater — stable 26C for betta and tropical fish, compact 10W design for small desktop tanks. Key benefits Maintains a consistent 26C to promote healthy growth for betta and tropical fish without constant manual temperature adjustments. Easy monitoring with clear red/green status indicator lights so you always know when the heater is active. Compact, unobtrusive design fits neatly into 3L desktop and other small aquariums while providing efficient warming with 10W power. USBpowered for flexible use in portable pet habitats, travel setups, or small indoor tanks. What it does and why you need it Delivers reliable, steady heating at 26C—ideal for species that require stable tropical temperatures. Eliminates guesswork and frequent thermostat checks, reducing stress for you and your fish. Small footprint and lightweight construction keep visual clutter low and circulation unobstructed in small tanks. Features and specifications Intelligent heating control: maintains set temperature automatically for consistent water conditions. Fixed target temperature: stable 26C for betta and tropical fish. Power: 10W compact unit suited to smallvolume aquariums (designed for 3L desktop tanks). Power source: USBpowered for portability and easy integration into travel or temporary habitats. Status indicators: red/green lights show operational state at a glance. Construction: crackresistant materials and a shatterproof body for longterm durability. Waterproof seal: rubbersealed design provides leak operation and electrical protection. Safety focus: built to support steady temperature control while minimizing risk from impacts or water exposure. Compatibility and size Intended for desktop and small aquariums (not for large tanks); optimized for tanks around 3L but suitable for similarly small setups. Designed for betta and other small tropical fish that require a steady warm environment. Lightweight and discreet—installs without dominating the tank or aquarium décor. Practical use scenarios Office or desktop aquarium: keeps a 3L betta tank at a steady 26C so you can maintain healthy fish with minimal attention during the workday. Travel and temporary habitats: USB power lets you run the heater from common USB sources while transporting pets or setting up a temporary outdoor/portable tank. Quarantine or hospital tank: provides controlled, steady heat for small treatment tanks where consistent temperature supports recovery. What to expect in daily use Simple plugin operation via USB and automatic temperature control mean less handson monitoring. Visual red/green indicators let you confirm operation quickly. Durable, waterproof construction reduces the chance of leaks or damage in small, active environments. If you need a reliable, compact heater that keeps small tropical tanks at the right temperature without constant adjustment, this 10W USB aquarium heater provides stable 26C performance, clear status indicators, and builtin safety features for portable and desktop use.