egg crate

[Phanman]

damn thats pretty lucky that he jumped tanks and didnt hit the floor.

What about using mesh from a screen door?

[justinl]

wow, that is one lucky fish. I dont think Ive ever seen eggcrate smaller than 1/2 inch, but what about gutter guard? Im sure it would be simple to make a frame to support stick the guard on.

it's this stuff. you can get it in big rolls in varying sizes.
http://hardware.hardwarestore.com/27...rd-285486.aspx