I made a small brush to clean the bottom of my bb fry tank. I found the idea on another fry list.
I found a "tung" brush at walmart - it looks like a round toothbrush w/ soft bristles. What helps is that the center has a hole - I snapped off the handle and inserted a small piece of ridig airline tubing into the hole - it fit perfectly - then just attach a length of regular airline tubing to that
presto - now I can scrub the tank while suctioning out debris without sucking up fry.
I know, a picture would be better, I will try to post one later
Gatorolsen