NO LID

EASIER to work, clean and feed.

There is no reason to go with a LID. Otherwise, you need to always get the entire tub out and then open it, get the snake out to clean, put the snake back and put it back in the rack.

While I can just slid the tub and see if it's need to be cleaned or not. I can do that for the entire rack way faster. It's also easier when it's feeding time.

With lids or no lids, there is no difference in air circulation, you need to make holes no matter what. Cause the tub will be squeezed between the shelves.