I'm going to put ADF's in my new tank with the other fish. I've read that they are master escape artists and that I should cover any holes so they don't escape. So I plan on putting a screen barrier on the lid. (most likely glued to the bottom of my lid, so when I put the top on the screen is in-between the water and the lights)
My question is, if I do this is it safe to let the water running through the filter run through the screen, seeing as the screen will be beneath the filter. Or should I cut a hole for the water to flow through? I feel that even if I do do this, the water will still hit the screen. I don't want to contaminate the water. Also, the lights won't do anything to the screen will it?