Pet Supplies > Aquarium Heaters > Best Sellers

Price: $14.04 ($16.18)

(as of 2014-07-15 20:41:42 PST)

You save $2.14 (13%)

FREE Shipping

Usually ships in 24 hours

Category: Aquarium Heaters

Rating: 4.1 / 5.0 (35 votes)

Buying Choices

13 new from $11.11

(as of 2014-07-15 20:41:42 PST)

Cobalt Aquatics 5-Watt Mini-Therm Electronic Heaters for Aquarium by Cobalt Aquatics

Product View

See larger image and other views (with zoom)

Product Details

Cobalt International
Cobalt Aquatics

Check All Offers Add to Wish List Customer Reviews


  • Fully Submersible
  • Compact for small aquarium
  • Shatterproof Design
  • Round Design


The all new Cobalt Aquatics MINI-Therm compact and fully submersible heaters feature a constant ON design, specifically for small aquariums up to 5-gallon. The heater casing is made from a thermal-plastic polymer that is shatterproof. An internal ceramic heat radiator that provides even and the best heat distribution from the heating elements. Perfect for freshwater and saltwater aquariums and terrariums. Available in 3 sizes that will raise recommended size aquarium temps up to 10 degree. 5-watt- 1.2-gallon.

Similar Products

American Thermal Aquarium Thermometer Horizontal
Hagen Marina Betta Waste Remover for Aquarium
Zoo Med Laboratories AZMBL20 Betta Hammock
Cobalt Aquatics 10-Watt MIni-Therm Electronic Heaters for Aquarium
Marina Floating Thermometer with Suction Cup



Become a fan of on Facebook for the inside scoop on the latest and best selling pet supplies.