Finnex Max-300 Digital Aquarium Heater Controller

I've added a Finnex Max-300 Heater Controller to my 75 Planted Aquarium after a new heater malfunctioned. The additional peace of mind is worth every penny of the $30 investment. I feel good knowing that if I have a heater stick, the Finnex Max-300 will be there protecting my aquarium. Considering we put significant amounts of money into our aquariums, what's another $30 to look over the safety our fish, shrimp, corals, and plants? So far, I've had this heater controller for 2 weeks and it is functioning flawlessly. I am very happy with my purchase and will be adding this as standard equipment to future aquariums.

i hooked it up to a 50watt heater in my 3 gallon fluval spec housing my Betta.

i had a 25watt that for some reason didnt work so went with the 50 which i knew was too big so hooked it up thru the finnex to assure i didnt cook Bennie.

set it at 78 and seems to be holding 77 pretty well.

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The controller was easy to install and setup. It has been keeping track of my Reef tank temp without a problem. The only negative I can think of is that it does not display tenths of degrees. If it did that I would give it five stars.

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I am using this with a hydor 300 inline heater on a planted 75 gal tank and its working great. about 2 months now.

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I have 7 2.5 gallon tanks on a 45" piece of 11" flexwatt heat tape. This heater controller has kept every single tank at a perfect 80F with a variance of only 1 degree.

I can't say anything about its longevity, but within 5 mins of me setting it up, I bought a second. This was extremely easy to set up, and the fish love it!