I have been trying to come up with a way to build fairly permanent, dense fish cover that might work per Eric Engbretson's observations (why fish cribs work and why they fail). I found a 2001 pdf document titled GFRAqua, that shows an artificial "habitat" constructed of geotextile material that is cut into small strips and weighted down with sand. Here's a link that might work: http://www.geosynthetica.net/Uploads/GFRAqua.pdf
Has anybody out there tried something like this? Is it a bad idea?
Thanks,
Dale

They've gone to plaid.
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