I heard someone talking about this this weekend at a club swap and it made me start to think. I am looking to start a basement fish room under my display with stock tank sump and frag tank. It is an unfinished basement. I am just wondering what if anything everyone uses for venting their basement fish rooms. My basement stays a constant cool temp and is far from air tight (100 yrs old). I just want to try to avoid mold and also fish room will be same room as main breaker box. Any thoughts?

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