I ordered myself one of those clear 1/4" screen netting from bulk reef supply.
http://www.bulkreefsupply.com/store/...ing-7-x-3.html
They are $12 plus tax but shipping was like $18. I figured someone else might be interested in getting one in Canada as well so I ordered an extra one. Have one for sale for $20 and it'll be here on Friday. Let me know if you want one.
Steven