fumak Super Mini Aquarium Heater USB 10W Alumina Ceramic Betta Heater Adjustable Submersible Fish Heater Small Fish Tank Heater Turtle Heater with Digital Display Thermostat, for 0-1 Gallon Tanks 10W(USB) is up for auction in Pet Supplies. The current bid is $1.00, 95% below the $18.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.