My aquariums are in my basement. My house had been badly neglected and the repossessed. The basement was gutted and it and the rest of the house was completely remodeled. When I bought it, the basement had a bug problem, but that has slowly improved with some frequent sneaker stomping. I don't worry about bugs too much, but I'm not spider friendly at all. I'd really like to set off a couple of those bug bombs to get rid of the last few bugs and big hairy Wolf spiders, but I'm afraid of killing my fish even if I cover the tank with plastic and put tape around it to seal it. Any experiences or thoughts?