These are not for my fish simple because I do not have a fish. Lol. I use these to mix my nutrients for my "vegetation". They are AMAZING at the amount of and rate these little guys can put out! Definitely recommend, not just for mixing nutrients or in a baby hydroponic system but be careful when unhooking the air line. They can be fragile and crumble apart.

These are not for my fish simple because I do not have a fish. Lol. I use these to mix my nutrients for my "vegetation". They are AMAZING at the amount of and rate these little guys can put out! Definitely recommend, not just for mixing nutrients or in a baby hydroponic system but be careful when unhooking the air line. They can be fragile and crumble apart.

[This review was collected as part of a promotion.] I have used these airstones in the past and I've always had good luck with them. They didn't arrive damaged or broken. I put them on a 10w air pump and I was very happy with the amount of bubbles they put out. In summer, I need high surface agitation to help cool my aquarium in a desert. These stones would easily work on a 5w air pump and if the bubbles are too much for slower fish then I highly recommend an air control valve. Overall a great product! NOTE: These airstones put out standard bubbles and not the fine mist ones.

[This review was collected as part of a promotion.] Smaller than i expected. But it works out because i can put them in a small space, since i only have a 10 gallon tank. Going to put them in a humanoid statue and see if the bubbles can come out the eyes

[This review was collected as part of a promotion.] These are great bubbling stones for aquariums. I soaked them for a bit then out them in my goldfish aquarium. It started a great flow of bubbles which is great for oxygenating the water. Easy to use and convenient!

[This review was collected as part of a promotion.] I ended up using these as a replacement for the air stone in my Aerogarden that somehow dissolved. Works well, produces continuous bubbles, and was easy to slide onto the tubing. The are kind of small, about 1 inch long, but for a small tank/bubbler they should be able to provide adequate bubbles.

[This review was collected as part of a promotion.] I have used this product before, but it is good to get a new air stone every once in a while. The two pack is great for my tank. This was the fish can get more oxygen and air flow in the tank. My fish love the bubbles!

[This review was collected as part of a promotion.] I've had bad luck with other brands but these airstones didn't break apart just putting it in the tank thankfully! Haven’t had any problems with them. So they're sturdy enough and I haven’t seen any clogs or deadspots where it doesn't bubble.