Would first like to say that I will be done with my 4th year of college after my test at 1pm, only 2 more years to go... woot woot

Now that thats out of the way, I am long over due to clean my dubia roach colonie which has been BOOMING to say the least.

My question:::

I am interested in using a colander to seperate the nymphs from the frass... Where can I get the right size colander, and what is the right size colander. I'm assuming walmart should have a nice selection, just not sure on the right size! Any help would be greatly appreciated, although I'm not sure how someone is going to describe to me the correct size unless they have an item number or name! thanks so much in advance

cheers