Ask a question
Is the 25Watt Neo-Therm ok for me to use in my tank?
I would like to set it about 78 and hold it there.
My last heater rose the water to almost 88. Not good.
Typically 2.5-5 watts per gallon are recommended. While the 25 watt could work if left on the lowest setting and certainly can work well with safety built in it has the potential to over heat if left on too warm of a setting.
What kind of cobalt heater do I need, how many watts
You will want 2 of the 200 watt heaters for good coverage of your tank! Feel free to let us know if you have any further questions!
We expect around 1.6 amps. Feel free to let us know if you have any further questions!
It won't shut itself off (I don't know of any heater that would). You will want to unplug it before its removed from water (or if you have an aquarium controller you setup something like a feed mode to shut down your pumps, heaters, etc at the press of a button for when you do a water change).
There isn't a calculator as each heater is a bit different, but all of the manufacturers do have recomended size aquariums for their heaters. If you look at the full details of this page there is a quick comparison chart to help you match the heater size to how big your aquarium is.
Thats not a problem at all. If the heater is larger it just won't run for as long, nothing to worry about!
Most of us around here use the Neo-therm but the second most popular has to be the finnex HMO series heaters. Assuming you don't have an aquarium controller yet I would get something that has a digital thermostat as they are a lot less likely to fail (in particular in the ON position).
I think they should be here this week :-) The different outlets have different amperage allotments but in general unless you are using two very large heaters your not going to run into any issues :-) Just for example, the 8amp outlet would be able to power about a total of 950watts. Should be way more then plenty for a 55g tank!
The heater should remember the tem, but that said with a setup like this what you would want to do is set your heater for your desired temp (say 78 degrees) and then set your Apex as an emergency cutoff to cut the power if the temp gets too hot and it appears the heater has failed (say 79.5 degrees). That way the heater is in primary control and you will avoid constantly cutting power to and from it (which may be hard on the heater).
Safety Features - integrated thermal protection circuitry shuts the heater down before it can overheat. Outer casing is shatterproof making the NEO-therms virtually indestructible. Use for freshwater and saltwater aquariums and terrariums.
Correct heater position- Vertical with heating element down, bezel, cord and button up.
- Minimum water level - Top of the bezel.
- For 25, 50, 75 Watt - 5.5" from bottom of the heater
- For 100 Watt - 8.75" from bottom of the heater
- Maximum depth of 31.5" deep at the bezel
Quick Compare - Cobalt Neo-Therm Submersible Aquarium Heaters
|Model No.||Maximum Aquarium Size||Dimensions|
|25W||6 Gallons||6 1/2" L x 2 1/8" W x 4/5" Thick at Bezel|
|50W||12 Gallons||6 1/2" L x 2 1/8" W x 4/5" Thick at Bezel|
|75W||20 Gallons||6 1/2" L x 2 1/8" W x 4/5" Thick at Bezel|
|100W||29 Gallons||9 3/4" x 2 1/8" x 4/5" Thick at Bezel|
|150W||40 Gallons||10 7/8" x 2 1/8" x 4/5" Thick at Bezel|
|200W||55 Gallons||10 7/8" x 2 1/8" x 4/5" Thick at Bezel|
150w By willy on 1/11/2017willy would recommend this product to a friend150watt working great no issues
Started out great.... By Adam on 4/15/2016Adam wouldn't recommend this product to a friendSo like everyone else I loved this heater for it's sleek design and ease of use. I bought my heater as a reef package with my aquarium back in May of 2014 and it's worked like a champ. Well it worked well until last week when it tried to cook my entire system. I caught it early enough that the heater didn't melt like some other people have stated. My aquarium was heated up to 92 degrees when i caught the issue and did lose some livestock. Since the issue was caught before it got well out of hand, I was able to save most of the fish and coral.
Well, all heaters will fail at some point so it would be a good idea to invest in a external controller as a safeguard. For the price I would of expected it to work longer and not fail in the ON position. Just expected more from this brand.
Problem heater By sailfin777 on 3/11/2016sailfin777 wouldn't recommend this product to a friendmany people that I know in the hobby say that the heater is prone to cracking and causing a fire. They'd have switched to the eheim model heater which are cheaper. I have removed all my cobalt heaters and replaced them with the eheim models.
Unreliable By Bret on 3/1/2016Bret wouldn't recommend this product to a friendI have owned 5 of them in the past few years. Three of the five have burnt up and smoked out my fish room with the smell of melting plastic. Just not reliable.
works great By Ruben on 1/11/2016Ruben would recommend this product to a friendthe fact that i can get this in my ac70 refugium and not in my display makes it worth it plus haven't had any issues with it
shocks you By james on 1/1/2016james wouldn't recommend this product to a friendthis heater for some reason shocks me, i use it in my mixing tank
Terrible heater By Snupa on 11/8/2015Snupa wouldn't recommend this product to a friendThis heater like many others stated exploded in my tank and sent off a a large plume of smoke across the room that had a terrible smell. I should have known better since so many others are talking about this on other forums. I'm disappointed in cobalt that there has been no real acknowledgement of the issue. Beware! If you have especially the 200W swap it out now!
Dangerous and a BRS embarassment By Brendan on 10/22/2015Brendan wouldn't recommend this product to a friendI bought 4 of the 200W heaters a couple years ago and just happened to stumble upon them again on the BRS website tonight. I was shocked these things are still on the website and listed as BRS recommended! Shocked is a fitting term since 3 of the 4 heaters I bought ended up leaking so much electricity into the water within 6 months that I was getting shocked every time I put my hand in the tank. Through process of elimination and a good voltmeter, I determined that it was definitely the cobalt heaters. Couldn't throw them away fast enough and I'm pretty sure that one of them was responsible for loss of several fish in my quarantine tank during that time. I honestly don't know why BRS still sells these things and still has them listed as recommended. Stay away from them! I just consider myself lucky that no one got hurt from them. I'd give this a zero star if the website would allow it. I love BRS and so really want to encourage you guys to pull this very unsafe product!
Expensive doesn't mean better. By Kyle on 8/28/2015Kyle wouldn't recommend this product to a friendI bought a 200w neotherm and was pleased for the first couple months. One night I woke up to a terrible smell, I came to the living room and found smoke rising from my sump. The heater had ruptured right in the center. Some black tar had oozed out from the hole. Luckily I got to it quick enough that no livestock was harmed, but the smell is still throughout the house. This heater is too expensive to have problems like this.
Great By Derek on 8/10/2015Derek would recommend this product to a friendabsolutely, love how low profile this heater his and thus far it has been very accurate and is very responsive with my Neptune Apex.
Do not buy this hazard By GP on 7/11/2015GP wouldn't recommend this product to a friend2 Weeks in to its us I start getting shocks disconnect one by one my pumps , heaters and i found the root cause this heater , I wonder if that's the 1st step before it explodes in your aquarium . Sending a complain to the attorney general in my state since from what I read in reviews this heaters are a hazard to human life.
Great Heater By Katherine on 5/15/2015Katherine would recommend this product to a friendI have now had this heater for a year in my 29 gallon Nano. The temperature has NEVER deviated from the setting. Need I say more? I am very pleased.