Cobalt Neo-Therm Heater

“The heater itself still operated normally and held the temp spot on at a perfect 84 degrees.”

“I hate things that only come with one suction cup”

“But it keeps my tank at temp just fine since goldfish like cold water and it does not have to heat up much.”

“I bought a cobalt accutherm for my 10 g and it's so long”

“I prefer the Cobalt Neo-Therms. They are very reliable and have an LED readout of the set and actual temp.”

“I just had a cobalt neotherm heater blow up in my sump!!! I heard a loud noise, and thought it was my dogs...I could see smoke!!! A lot of it!...My gfci didn't even trip though.”

“all my saltwater and my non turtle freshwater tanks run Colbalt Neo heaters because A they are sleek, B they have a ton of built in fail safes, C they are shatter proof and D I have heard many stories of in the event the ex blow the manufacture paying out to cover damages of lost live stock.”

“Doing some more research into the Neo-Therms, they seem to fail --as in explode -- far too often for my comfort. Reviews complaining of that I read were as recent as this year.”

“The smaller Cobalts are awesome in smaller tanks, but the bigger models have had issues. Hopefully they've fixed that as stated earlier, but they were blowing up like the Marineland Stealths did.”

“I have the 150 and needless to say its one of my favorite things in my tank. Anything that you don't have to worry about malfunctioning is awesome, which is why I love this heater.”

“Several years ago it cooked my tank. So yes, I had issue with these guys. Not gonna crap on the brand as I am still using 3 of those in versions applications.”

“had one of these fail after 6 months, water temp was set at 77, heater glitched to 92. I was traveling at the time and this cooked my coral and my tank. In damage control now.”

“I too have a NeoTherm Heater and am amazed at how cold the water is some days. The next day it feels really warm. Maybe the heaters aren't as amazing as they were made out to be with their .5 degree temp shift.”

“I've been using them for several years with no problems. Their thermostats are particularly good, they stay within about +/- half a degree or less according to my Apex temp probe.”

“I have run the Cobalt Neo-Therms for years in my DT(s). Very true to keeping temp. Eventually water starting getting into the casing and then another got stuck on and nearly fried my tank.”

“I have had several heaters through the years and the Cobalt Neo-Therm has lasted 3 yrs with no problems. Amazon sells them but they are expensive but I think definitely worth it.”

“I have had 2 overheat the tank. I had two 75 watts in my 36 gallon. I few months ago I noticed the tank temperature was 81 (it’s usually 75) and the heater light was set all the way up on one.”

“My only issue with these, and I have used 4 over the past year and a half, is that the button to change the temp is extremely difficult to push, as you also stated but in addition they all have had failed light indicators.”

“I had a Cobalt Neotherm split open end to end just when it was soaking in some fresh water, so I can attest to quality control issues with some of the previous lineup.”

“I replaced it with a new 300W Neotherm, no issues with it, holds temp at 77.9°F when set to 78... close enough for me.”

“I have 4 Neos, 2 50s one for each of my nuvo10 QTS and two 100s for my main display, LOVE them all. I've had the DT ones for about a year now and no issues at all with Rock solid temp.”

“My first and hopefully only tank crash occurred two years ago with a NeoTherm which stuck in the on position while I was on vacation. Cooked the entire tank.”

“I purchased the 75W Cobalt NeoTherm for my BioCube 14 and it is rock solid. The built-in thermostat/thermometer is great, as there is one less item I need to have in my tank.”

“I like my 2 cobalts keeps temp super stable but I have been reading about a lot of these failing. Got me nervous.”