Well I recently, like a few weeks ago bought a long airstone(like a 12 inch one) compared to the ole small round airstone. The thing is it, doesn't have bubbles coming out of all of it. Just a few inches of it, like maybe 3 tops of the whole 12 inch airstone. I even bought a new one, which looked better made and it still didn't work, so I know it's not the manufacturing of the airstone. it must be the air pump. I have just a little 20 gal rated air pump for the 125 and it does this 2-3 inches bubbles not the whole 12 inch.
I plugged the 12 inch airstone into my 120 rated pump(it's a cheapo, but still better than the 20 rated air pump, and put the airstone in the 56. Guess what, it still only put 2-3 inches of bubbles out. So It must be the air pump, and their not even old. Less than a year of use and the 120 and 20 rated does the same on the airstone. Now I'm thinking it must be the height of the tank (their both somewhere around 18 in tall). Is there a good air pump that will fix this, or what else could be wrong. It's a simple airstone, why is it not working.
Here's a pic of what i'm talking about.
I plugged the 12 inch airstone into my 120 rated pump(it's a cheapo, but still better than the 20 rated air pump, and put the airstone in the 56. Guess what, it still only put 2-3 inches of bubbles out. So It must be the air pump, and their not even old. Less than a year of use and the 120 and 20 rated does the same on the airstone. Now I'm thinking it must be the height of the tank (their both somewhere around 18 in tall). Is there a good air pump that will fix this, or what else could be wrong. It's a simple airstone, why is it not working.
Here's a pic of what i'm talking about.
