Finnex HMO Heater w/ Digital LED Controller

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Quick Overview

Maintain temperature control to provide a safe and stable environment for your tank inhabitants with the Finnex HMO Titatium Digital Control Heater.

Digital accuracy within to +/-2°F keeps water temperatures at a constant level.




HMO-50: 50W – 10-20 Gallon tank

HMO-100: 100W – 20-30 Gallon tank

HMO-150: 150W – 30-60 Gallon tank

HMO-200: 200W – 60-80 Gallon tank

HMO-300: 300W – 80-100 Gallon tank

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  • Quick Overview

Maintain temperature control to provide a safe and stable environment for your tank inhabitants with the Finnex HMO Titatium Digital Control Heater.

Digital accuracy within to +/-2°F keeps water temperatures at a constant level.


HMO-50: 50W – 10-20 Gallon tank
HMO-100: 100W – 20-30 Gallon tank
HMO-150: 150W – 30-60 Gallon tank
HMO-200: 200W – 60-80 Gallon tank
HMO-300: 300W – 80-100 Gallon tank More

Finnex HMO Heater w/ Digital LED Controller

86% Recommend this to a friend (108 of 125)

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HMO-50 Finnex Heater
SKU: 300120
$32.99
$28.99  
 
 
HMO-100 Finnex Heater
SKU: 300121
$34.99
$30.99  
 
 
HMO-150 Finnex Heater
SKU: 300122
$36.99
 
 
HMO-200 Finnex Heater
SKU: 300123
$38.99
 
 
HMO-300 Finnex Heater
SKU: 300124
$41.99
 

Availability: In stock

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Product Questions

what is the length of the 150w?
Question by: RT on Apr 22, 2016 4:32:00 PM
Great question!
The length is 7.8" you will need 9" of clearance to handle the cable from the top.
Answer by: Connor (Admin) on Apr 26, 2016 6:45:00 PM
Would 2 HMO-200 Finnex Heaters work for a 120 gallon reef tank?
Question by: Jeff on Jul 25, 2016 1:44:00 PM
Hi Jeff,
The 200w HMO heater is good for tanks around 60-80 gallons and two of them would be perfect for a 120 gallon tank. Thanks for the question and if you have any more just let us know.
Answer by: Charlie (Admin) on Jul 25, 2016 2:50:00 PM
How long is the 100w? Would it fit in the back of an Innovative Marine Nuvo 20?
Question by: Rob on Aug 19, 2016 2:24:00 PM
Hey Rob,
The 100w model measures 6.6" long and would certainly fit in the Nuvo 20.
Answer by: Jason Smith (Admin) on Aug 19, 2016 3:29:00 PM
How long is the 200W heater?
Question by: Todd on Feb 7, 2016 8:11:00 AM
Great question!
The 200 watt will be 11" long. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 10, 2016 6:46:00 PM
i have 150 gal salt water can i use 2 finnex 300 digital control hmo heaters
Question by: lisa on Sep 9, 2015 2:49:00 AM
Great question!
2x 300 watt heaters would be a perfect set up! Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Sep 15, 2015 6:08:00 PM
Can the Finnex HMO be mounted in the tank vertically, or is horizontal mounting the only option?
Question by: Eric Hall on Jul 27, 2016 2:54:00 PM
Hi there,
The HMO heaters can be mounted in any orientation and it shouldn't cause any issues.
Thanks for the question and if you have any more just let us know!
Answer by: Charlie (Admin) on Jul 27, 2016 3:01:00 PM
How long is the 300W heater?
Question by: Bill Peterson on Aug 21, 2015 4:14:00 PM
Great question!
The Heater is 12" long exactly. However 13" clearance would be needed to fit with the chord coming out of the top of the heater. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Aug 24, 2015 2:24:00 PM
I have 220 gal aqurium . Will 2 300 watt heater be enough ?
Question by: Andrik on Apr 26, 2016 9:11:00 PM
Great question!
You will need between 550-1000 Watts in your system. 2x 300 watt heaters would work well!
Answer by: Connor (Admin) on Apr 27, 2016 3:17:00 PM
are these submersible...also what is the length of the 150 watt
Question by: gary gonzales on Mar 6, 2016 1:36:00 PM
Great question!
These are submersible and the cord from the wall to the controller is 4 feet and from the controller to the heater is 2 feet. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 9, 2016 5:17:00 PM
IF MY TANK IS 60 GALLONS WOULD YOU RECOMMEND THE HMO-150 OR HMO-200?
Question by: PRESTON on Oct 1, 2013 9:13:00 AM
For a 60g tank we would suggest using the 200w heater. Its best to err on the larger size in case you need it (say you have a particularly chilly day).
Answer by: Bulk Reef Supply on Oct 1, 2013 9:13:00 AM
I have a 54 corner with sump. If I want to go with two heaters so one is a spare if one fails could I get one without controller as backup set low and the other with controller set-up? If this is acceptable what size would you recommend? Also do you recommend them in the skimmer section or pump section? Thank you.
Question by: Erik on Jan 18, 2016 5:19:00 PM
Great question!
You can certainly select 2 heaters one which the controller set to a slightly lower temperature. For this size tank you will want 2.5-5 watts per gallon around 250 watt total. Here you could select 2 150 watt heaters to work well and place in the same section of the sump if needed!
Answer by: Connor (Admin) on Jan 27, 2016 1:45:00 PM
Hello, I have a 15 gallon and 20 gallon tanks. Im thinking of getting the 50 watt for the 15 gallon but what should I get the 50 watt or 100 watt for the 20 gallon tank? Thank you -Paul
Question by: Paul on Mar 23, 2016 12:01:00 PM
Great question!
Typically you will want between 2.5 watt to 5 watts per gallon. Ideally the 100 watt will work great with the 20 gallon tank. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 23, 2016 2:09:00 PM
What size would you recommend for a 29 Gallon JBJ Nano Cube? And more importantly, will it fit in the back??
Thanks!
Question by: Toby Robinson on Feb 2, 2016 8:30:00 PM
Great question!
You will want 100 watt heater for best performance. These will sit in the back no problem. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 24, 2016 5:08:00 PM
I have a 92 Gallon Corner Bowfront with a 20 Long Sump and a 40 Breeder Frag/Refugium all plumbed together. Would you recommend 2 300 Watt heaters for this? Also, is the "controller" one that will kill the power to the heater if it gets stuck in the on "position"?
Lastly, what would you recommend for a 29 Gallon JBJ Nano Cube and would it fit in the back of the filter area?
Thanks!
Question by: Toby Robinson on Feb 3, 2016 1:40:00 PM
Great question!
For the initial set up 2x 300watt heaters would work out great! The controller is the part which turns on or off depending on temp in the water column. For a 29 gallon tank we recommend anywhere from 75-150 depending on room temperature. usually 75 watt is plenty. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 24, 2016 6:19:00 PM
Do have a controller that controls both the heater and the chiller ??
Question by: ed Secula on Oct 7, 2013 11:38:00 AM
Hey Ed,
For something like that you would be best served by an aquarium controller. The most basic of which is the Reef Keeper Lite unit and it will do both of those things as well as give you two more outlets you can use as timers or other functions.

http://www.bulkreefsupply.com/reefkeeper-lite-basic-digital-aquatics.html
Answer by: Bulk Reef Supply on Oct 7, 2013 11:38:00 AM

Full Details

Finnex Digital Titanium Heaters implements new technology for precision digital control for maintaining water temperatures at a constant level. The titanium tubes are corrosion-resistant and virtually unbreakable. These advanced heaters create a safe, healthy, and stable temperature by maintaining water temperatures within +/-2° F of the set value for your tank. Additionally, Finnex HPS heaters are equipped with memory. so in the event there is a power outage, your heater will resume your preset temperature settings at start up. Please note that the digital display reads in Fahrenheit.

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Reviews

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  • Do not Buy By John on 11/5/2016

    I wish i would have read a couple of reviews before i bought these heaters and BRS should remove them from their website. I have them connected to a reefkeeper lite and they can't hold the 78 degree temperature. I have both units set at 92 so that they stay on all the time but they shut off all the time and say the temperature in the tank is 88 on one and 92 on another. when the reefkeepeer keeps them on because they can't hit the temperature. Very disappointed.
  • Good heater, but don't trust built in controller By Nick on 9/29/2016

    The unit seems to be made of quality materials, but the controller isn't to be trusted. I'm using a Reefkeeper Lite to keep my tank stable, so it's not an issue for me. When used without a separate controller, the heater can't keep a stable temperature. It fluctuated about 5 degrees when using its built in controller.
  • Great Product By Harry on 8/1/2016

    Works consistently and accurately. Thanks.
  • Excellent product! By Carmen on 6/29/2016

    This was the easiest heater to set temp to. I got the 300 watt and it's not overly big. Smaller than another name brand heater it replaced.
  • Awesome By FLSharkvictim on 5/29/2016

    Great heater for under the $50.00 range.. The thermostat that is build in is dead on with my with my temp controller.. HIGHLY recommended...
  • Great heater, but integrated thermocouple causes issues. By FishersCoralReefFarm on 5/8/2016

    I have two of these. 75@ with the separate thermal probe and a 300W with the integrated thermal probe.

    I have the 300W heater on a 130-gal system with a 79-F set point. The water temperature of that system, as measured by a calibrated digital hand-held meter, reads 76-F when the Finnex controller displays 79.
    If I unplug the Finnex heater for 15 minutes and plug it back it, the digital display shows a temperature of 76-F for about 30-45 seconds. But, after the heater has been on all that time, the digital display on the Finnex climbs and within 2-3 minutes reaches the 79-F set-point, at which time the heating element turns off. A sample of the water reads 76-F with the hand-held digital thermocouple.
    I believe that by integrating the Finnex temperature sensor into the heater body itself, leads of a falsely elevated temperature. I can choose to simply raise the set-point of this heater to 82-F and cross-check with my hand-held, but I am taking a risk by relying on a temperature bias that might not be there one day.

    I still recommend this heater for it stability, clean-ability, durability. But I am planning to by a separate external thermal controller . I believe this will work, as the Finnex retains its set-point during power loss. I’ll just have to get okay with the idea that every time the external controller turns on power to the heater I will hear a quiet beep.
  • HMO-300 Finnex Heater By RCM on 5/2/2016

    Bought the 300, I've had it only 3 weeks, no issues so far....
  • 1st one was great. 2nd and 3rd sucked By Davo31 on 4/28/2016

    I bought one of these a year ago and loved it so much I bought a back up a few months ago. The 2nd one wouldn't turn on so I got a replacement from brs. Then that one lasted 2-3 weeks before it quit...... And my original from a year ago finally gave out this morning. Im kinda thinking it's the LED portion breaking and not the heater itself. Each heater would get around 10 degrees off before it would just start flashing/ not turn on. Either way I will not be buying this brand again. And now I'm forced to buy a aqueon pro (it's too big for my liking) for Petco because I need a heater now.

    Side note: BRS did an amazing job at customer service. There were some hiccups but they kept in contact with me and I'll definitely keep buying from them in the future
  • Excellent By Hoss on 4/14/2016

    I have been using 300 watt heater for four months in my 75 gallon reef tank. I keep it set at 79 degrees. It keeps the tank within a one degree range. The suction cups are not the best and I needed to add my own. The memory feature is nice. Overall very pleased with this product.
  • Finnex HMO Heater with Digital LED Controllre By Brian C. on 3/28/2016

    I am using this product to heat my saltwater to be used in my tank. It works quickly and seems to be accurate on the temp it is heating to. I like its quality.
  • Good Product for the price By Chris on 3/24/2016

    I have only had the heater now for about 1 month but overall it runs great. Good display with temperate gauge built into it allows you to set the temp to your desired temp and also see the current temp. It does seem to be off almost 2 degrees, but it holds a consistent heat for my 55 gallon tank. I run a 200 watt, and I would recommend it.
  • Great, consistent heater, nice digital display By Becky on 3/18/2016

    Nice sleek little heater, suction cups work nicely. I really like the digital display and it's little hook for hanging, however the cord between the heater and the display / controller could be longer to allow more placement options. Keeps a consistent temperature and seems to be durable.