cplawrence
Aquarium Advice Freak
I understand that a glass top is bad for air exchange. I currently don't have any sort of a lid on my tank, but I also haven't added anything other than LR. When I started buying fish, I intended to get a piece of eggcrate to set over the top to prevent suicides. However, a response to a thread in the Beginner's forum seemed to indicate that no lid at all was OK. What do you have?