Keep your tank water at a stable temperature with the Cobalt Aquatics Electronic Neo-Therm Submersible Aquarium Heater. Giving you “one touch” control in a modern, sleek package, this aquarium heater is made for supreme safety and reliability. The advanced thermostat is accurate within a plus/minus range of .5 degrees, and the LED display reads both the set temp and the tank temp simultaneously. A built-in thermal protection circuity shuts down the heater before it can overheat, and the shatterproof casing is virtually indestructible.
Electronic, fully submersible aquarium heater is great for freshwater tanks, saltwater tanks, and terrariums.
Modern, flat design features a shatterproof case and a one-touch system that is easy to setup.
Advanced electronic thermostat is accurate within a plus/minus range of 0.5 degrees.
The LED display shows both the set temp and aquarium temp simultaneously.
Built-in thermal protection circuitry shuts down before it can overheat for supreme safety and reliability.
The best heater I have used. Pricey but outstanding product
lasted 5 days
on Jan 23, 2021
this heater was great for the first 5 days, now it doesn't work. now to see if i can get a replacement or refund.
on Dec 25, 2020
Failed on me after about a year of use, don't waste your money.
best heater i've ever used!
on Aug 28, 2020
i've owned two of these heaters and they are always accurate to the degree. i love these!
on May 15, 2020
missing suction cups should include 4 i got one leaving me really sad i have to wait for shipping again
on Dec 2, 2019
I was really excited to use this heater since it had so many great reviews. I bought the 75 watt, as that was the suggestion for a 20gal. It never brought the temp above 73, which is too low for my betta and Cory cats. I thought I would try it in my hospital tank, which is a 10 gal and it was stuck at the same temp.
The customer service was great, though. I was given a refund quickly. I’ll order another to try just to be sure, as I really love the sleek design and the lack of glass on this heater.
Great heater, keeps my 10-gal warm
on Dec 8, 2019
I've been using this heater in my 10-gallon for two months now. It keeps my tank at 78-80 degrees if I keep the setting in the low 80's (82 or so). This heater is very sturdy and well made. The button to change the temp. is a little hard to press, but other than that I have no complaints. Time will tell how it holds up, but for now, it's great!
Doesn't warm my turtle enclosure well
on Dec 21, 2019
This is a 100 watt heater and I'm using it to warm about 10 to 20 gallons at most and it doesn't get the water above 60 to 65. It seems to malfunction when I set the temp. Within the 70's or 80. But chewy is awesome for returns. No risk, give it a try. I may have gotten a defective item.
on Nov 24, 2019
25 watt was defective and promptly replaced by Chewy. That is working well in the QT/hospital tank. Ordered a 50 watt for my Waterbox 20 cube and it failed after 7-8 months. I expect better from Cobalt.
on Dec 30, 2019
We are very happy with this purchase. The heater keeps our 20 gallon tank temperature where we like it at 78.