Fish Tank Aquarium Heater - Adjustable Temperature Submersible Thermostat Heater,25W/50W/100W/150W/200W/300W

This doesn’t take up a ton of space being thinner and longer , works quickly, and was an affordable price… I came back the next day and ordered a second one

Great

It just works on and off without reaching desire temperature for 4 months and then stops, not happy at all

Worked well during the Texas freeze. I had three of this 300w units running in a 500 gallon outdoor tiled gunite pond and they kept the water above 45 or so. I had another floating heater, that helped bring the water up to 57 or so but the floating heater is useless IMO, it does not turn on unless the water gets to 35 or so. These ones work non-stop, it will never reach the 80F setting I have.I dont think this will be suitable for colder places. Suction cups are useless.

When they say you get what you pay for, they are not wrong. This heater went out in less than 3 weeks. Busted in the aquarium and thankfully I was right by it so could take out the wire soon enough so non of my fish died.Look for better brands such as Aqueon, Fluval etc

I was very satisfied with the item. The item arrived on time and exactly as described. I will order again from this seller- very pleased customer.

I was told to buy two because of the size of my tank. But this is such a good ideam that one did just fine.

Great fish tank heater. Works great. Be careful taking it out bc it gets very hot lol