Homebrew PCBs

>
> Yes it is dark green\black, it go's darker with use, but when i put the
> air pump on, it foams up (frothy) and starts to come out the top of the tank
> is this ok ? am using the pump cos i think that it needs more air time!
> 
>


Did it get contaminated with detergent of some sort? Was the peroxide you used just peroxide, or some sort of hair product with additives? Mine doesn't froth at all.