when i get bk 2 home at weekends i feel amazed if anything extraordinary not happens in my tank! now i have just realised that there are lots of small bubbles attached to my pimple mushroom's and stary polyp's base rock! the interesting things are 1) they dont appear on live rocks! 2) they dont explode when touched! just leaves the rock n goes up to the surface n moves according to the current! any idea why im having this ? what can be the reason! moreover what can be the solution !
