These are easy to use, easy to read, just stick to the tank. I usually put mine towards the bottom of the tank, so I'll get an accurate reading at all times ... they stay on well, don't seem to lose their effectiveness ... this is my preference when it comes to thermometers.

Pros: I like the strip thermometers.

Cons: Non found.

I like mine exept that it comes off of the wall. I also think its broken because the tampiture always stays the same. And my tank is either colder or warmer then that tempiture.

Pros: Comes off of the wall

Cons: Doesnt cost alot

I used this thermometer because it's easy to read and i feel i get an accurate reading. The only issue I ever had with this thermometer was it sometimes doesn't stick to the side of the tank very well. Once it falls off, I usually go get another one since it doesn't stick great. These thermometers are inexpesive so they are well worth the money.

Pros: Easy to read

Cons: Sometimes falls off tank

I also used this brand of thermometer that stick to outside of aquarium. Very easy to read and is very accurate.

Pros: Easy to read

Cons: none

This is so easy - just stick it on the aquarium and its always there.

Pros: easy to use, can't lose it, can't break it

Cons: none