dc <jdoe.DeleteThis@hotmail.com> wrote in
news:Xns975CD319DF7D0jdoehotmailcom@216.196.97.131:
> "Sandy" <slacagnina.DeleteThis@earthlink.net> wrote in
> news:1138495327.184299.144810 @z14g2000cwz.googlegroups.com:
>
>> Can anyone tell me why white foam has gathered at top of tank?
>
> It's protein skim due to too much un-dissolved organic waste.
> Reconsider the amount of food you put in your tank, increase surface
> agitation, and keep up with your weekly water changes.
Oh... one other thing it could possibly be is a bubble nest, that is if
you're keeping bettas, gouramis, or any other of the labyrinth fishes.
Bubble nests tend to look a more like highly organized and localized clean
bubble groupings than plain old nasty foam though.
>> Stay informed about: foam in tank