This is a good addition to your aquarium. Other than the fact that they look cool, the bubbles are a good aereator. This product is also easy to use==a plus for me!

Pros: Bubbles help to aerate

Cons: none

this is important for keeping your tank properly balanced and comes in a variety of sizes so you can choose the one that is right for whatever size of tank you have.

Pros: Important for clear tank

Cons: ?

I put this product under the gravel and the bubbles come up. It looks really cool like under the ocean. the only problem I have is it sometimes comes disconnected

Pros: looks cool adds air to the water

Cons: sometime comes disconnected

This is a very cool product. The bubbles it makes are entertaining to watch. I would definitely say buy this - it effectively puts air back into the tank.

Pros: cool

Cons: n/a

This is an essential thing to have in your fish tank. The fish need it, and actually it is very entertaining to watch the bubbles that it produces.

Pros: Produces nice bubbles for the fish

Cons: Does not last as long as I would like