Fluval Marina Submersible Heater for Aquarium, Mini
|Price:||$14.99 & FREE Shipping on orders over $35. Details|
- Mini, 25 Watt submersible heater for fresh or saltwater aquariums
- Easy to read temperature settings
- Impact-resistant glass design; Water proof sealing
- Includes bracket with suction cups for easy, secure installation
- Length: 6 Inch
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Top Customer Reviews
- Price - very reasonable, half the price of the better/more expensive heaters, at fourteen bucks
- Compact size - easily fits in my Fluval tank's filter compartment
- Adjustable temperature for the price of a fixed temperature unit
- Plastic bumper on bottom of the glass barrel protects the heater from impact.
- Heats a 5 gallon tank up to 76*F, might do 78 if I twisted the temperature knob all the way to the right.
- Unknown reliability. So far, so good, but a few weeks is too little time to tell. I'll come back in a year or so (hopefully not earlier with bad news) and update.
- The heater is just adequate to heat my 5 gallon tank to the lower end of typical tropical fish temperatures. I would not think of using this in any tank over 6 gallons, but then again, it's only designed for up to 5.5 gal tanks.
So far, this heater appears to be exactly what I wanted. It fits my Fluval Spec V perfectly and does the job it's supposed to do. I've got no real criticisms, so it gets 5/5 stars until/unless my experiences change (hopefully they won't).
I am able to keep the tank a consistent temperature (around 80 degrees). I do not have to have it up all the way to get that temp, so it has a good temperature range. I am thinking about setting up a few more betta tanks, and will definitely get more of these heaters if I do.
I am also frustrated because there is nothing on the packaging that would indicate what temperature the heater is factory set to. It simply says that the heater was calibrated in a 70 degree room, and there are NO markings on the heater itself that would indicate the temperature. It needs a temperature gauge on the side that is clearly marked so that a person can verify that they are not over heating a tank. I stuck it in my tank and am closely monitoring the water temperature for the moment. However, I will be returning it if I can't get the temperature to hold steady.
Lastly, the package showed up extremely dirty (even in the box that Amazon put it in).
Most Recent Customer Reviews
I've had for about a month now fully submerged in my chi II tank and it seems to work great!
I do wish it had numbers on the dial.. Read more
We have a small, 2 gallon aquarium that sits in a building where the heat is tuned down to 62 degrees after closing hours. Read morePublished 2 days ago by Russell C.
I got this for a 5.5 gallon. It's difficult to use. There are no number markings so you have to guess where to put the dial and check the temp all day. Read morePublished 3 days ago by C Marx
I've had this mini heater about a week; I came here as a well-known pet supply retailer didn't carry this size/wattage. Read morePublished 6 days ago by Jennifer
I wanted to buy a heater where I set a temperature and forget, but such precise heaters costs over $50 or more. Read morePublished 6 days ago by Renata
I recently brought the Marina 25 watt Submersible Heater for my 2.65 gallons fish tank because my room temperature is below normal room temperature. Read morePublished 8 days ago by Lisa
I needed a heater for my betta because the one I had did not fit my needs. I needed an adjustable heater that allowed me to adjust and regulate the heat in my 1.5 gallon tank. Read morePublished 13 days ago by Jennifer M.
Works great and maintains am even temperature in my 1.5 gal tankPublished 16 days ago by Ramblin' Rabbi