These little scrubbers are effective,however, I prefer
my long handled one much better. The long handled one is much easier to use and you're not down in the
tank so much. All in all it's ok and it works well in my
smaller tanks.

Pros: durable materials

Cons: none

This does an excellent job and won't scratch your glass. Magnet type is good for a quick touch up when you don't want to stick your hand in the tank, but this thing does that real scrubbing.

Pros: no scratch

Cons: getting wet

No matter how hard you try, you always need to really scrub the glass on your fishtank. I least I had to with mine.
These handled scrubbers look great for getting the job done without too much mess.

Pros: none

Cons: none

i love this one that nasty algae, one sweep and its gone.

Pros: cleans like magic

Cons: have to get hands wet

Cleans algae off easily and other marks on your tank walls. I also have the older version of one of these without the handle. These little scrubber things work nicely!

Pros: cleans well

Cons: none