This makes the tank look nice and give teh fish extra oxygen in the water. good overall.

Pros: makes the tank interestin

Cons: hard to install

provides needed aeration to your aquarium, not that great to look at..

Pros: provided aeration

Cons: one design and style

my tenent haas this for his fish tank he said tha tit is easy to use use his fish have more air & it helps keep the oxygen in the water at a better rate...

Pros: eassy to use

Cons: dont know

easy to conseal under rocks under the ceramic castle even behind a bush

Pros: easy to install, works

Cons: none

I love the look of these air stones. The only problem is that they work well in someone elses tank but they don't seem to work well in mine. I have very hard well water and the lime build up doesn't seem to bother my fish but it sure plugs these stones up in a hurry. I've even tried spring water but it does the same thing. I refuse to purchase bottled water to fill all my fish tanks so I have to go without these wonderful stones.

Pros: Nice look

Cons: No Complaints