Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

I picked up a fish tank pump and a container that should be good for
my first etching tank. When I picked up the fish tank pump, I also
noticed they had these thing that looked like porous stone that are
used to spread out the bubbles. I bought one, but dropped it on the
floor before I had a chance to see if it worked.

So, I am wondering if there is a good way to get bubbles to spread out
across the bottom of my container?

The fish tank thing only cost $1.00 or so, so I really don't mind
buying another one to try, but I figure some of you creative folks
here might have better method.

Chris