BubbleS CominG OuT Of FilteR

[arj]

Since last night, there have been loads of small bubbles coming out of the filter with the clean water, I don't know why this is. It's not happened before.

It cant be that the water level has gone down, because we left the house, and came back later that night; that's when we noticed it....

 

[sylvia]

What kind of filter? I have fluvals (internal) on all my tanks ('cept for breeding) and they have a kind of opening at the top which lets you add an air pump for bubbles. If the water gets too low (even if it's still covering it) you'll get a few occasional bubbles.

 

[arj]

Yeah, same here. There's a little rubber twisty thing on the top which allows air to come through, but that's set to none (by the way, should I have this on or not?).

 

[Zenn]

Are you sure, because the seal might be broken and air is seeping in, in which your get a small amount of bubbles come out, though it aint harmful to the fish, if anything, it makes the water WELL oxygenated, making it easier for the fish to breath... Though you dont want it too oxygenated, because it could stress the fish

 

[sylvia]

Why would too oxygenated stress the fish (unless you mean the bubbles may annoy them) - I didn't think it was possible for a fish tank to be 'too oxygenated'. I attached some airline tubing to the rubbery thing myself and taped this to the back of my tank's hood so it produces lots of little bubbles to help increase the water's surface area (which BTW, is what oxygenates the tank - oxygen does NOT get into the water directly from the bubbles but from the bubbles rippling the water surface).

 

[arj]

oxygen does NOT get into the water directly from the bubbles but from the bubbles rippling the water surface

So does this mean that if the bubbles are going directly into the water, it has no effect at all?

 

[sylvia]

didn't explain very clearly lol... It does have an effect. The bubbles rise to the surface (hopefuly ) and there they break and ripple the surface - adding to the surface area through which oxygen can enter the water What I was trying to clarify (or maybe it was more just hinting at) is that you don't need bubbles to oxygenate the water. All you need is for the water's surface to be rippled or broken. A strong filter current can provide this so adding bubbles is totaly up to you and your tastes Though, ofcourse, the bubbles help as I've already explained, especialy if you have a weaker filter or low current.

 

[arj]

Ok, that's much clearer, thanks Sylvia.