Best Seller | Mini Heater, 10W, 10 W / 9 IN Before you dive into the exciting world of desktop aquariums, make sure to equip yourself with the Aqueon Mini Heater 10W! This little guy packs a punch and is perfect for aquariums up to 5 gallons. Plus, it's fully submersible and shatterproof - no... ... more Mini Heater, 10W, 10 W / 9 IN Before you dive into the exciting world of desktop aquariums, make sure to equip yourself with the Aqueon Mini Heater 10W! This little guy packs a punch and is perfect for aquariums up to 5 gallons. Plus, it's fully submersible and shatterproof - no... Petco.com | | $15.99 go to store |