The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
I've heard of people using plastic grids that that can be found in sewing stores and the craft section @ walmart. The stuff is meant to be like a rigid screen. Roll it up and use zip-ties to secure it. I have not tried it but it seems like it would work.