mantamaze aquarium heater 300w/500w/800w/1000w for 20-300 gal, fish tank heater with intelligent leaving water automatica stop heating and overheating protection, for freshwater & saltwater 300w for 20-80 gallon is up for auction in Pet Supplies. The current bid is $5.00, 87% below the $39.99 MSRP, in Good Condition. Bid on this item at our Florence - Industrial Road location before the auction closes.