Fluval® Submersible Heaters
It's OK, not fully submersiable
This heater heats the water. However, the big flaw is it's NOT fully submersible.
There are two water lines on the heater, the lower one is minimum water level and the higher marking is max submersible line. Wish I would have bought a better one.
Also, over time, I've noticed now it wants to keep slipping down. It's just a pain to remember to keep the water level between probably a 2" margin on the heater.
March 17, 2014
It's okay, but have had better.
I have had the 100 watt for 4 months now. It does okay as long as the house is around 68 degrees or higher, but not so good if the house gets cold. The Top Fins I have, has been much better about keeping the temp right. I actually still have that Fluval, but also had to buy a cheaper heater to help out. With this heater set on 75, it will let my water get down to 70. If you read the instructions, it is also not fully submersible and needs to be unplugged during a water change.
January 25, 2014
It heats up the aquarium perfectly. My fish seems to feel comfy at the set temp of 79F.
January 17, 2014
Very good price and sleek design I like it although it does have a water line maximum not fully submersible although that was not in my plans, just be aware.
January 3, 2014