what is a foam pad and...

[reefBoyDc]

...where do i get one.

Trying to get rid of microbubbles. WHat's the difference between a foam pad and a sponge? Different words for the same thing?

Will a foam pad let more water through than a sponge? Or less?

Thx.

[Doug1]

Porous sheet foam, like used in filter applications, I would think a thin sheet would work, its open cell and water will flow thru easily, but will cause the micro bubble to catch on it and outgass.
Like the stuff used as dust filter sheets on AC units or something like that

[reefBoyDc]

Thanks, I'll try it.