So it's been about 8 months since setting up my system and I noticed some brown powder on top of my sump. I look up underneath and see my wood is getting eaten alive by powder post beetles. This wood is inch and a half pieces of thick old redwood. My stand was built with old oak and redwood that was supposedly dried and cleared from pests but apparently not. It seems to be isolated to just one specific piece so I put a tarp over my sump for the day and treated the wood with Bora care. Hopefully this will do the trick but if not I already have a quote for a heavy duty aluminum tank stand ready to order. If worst comes to worst I will get a new stand and transfer the system over. Fingers crossed it wont come to that. This sort of thing can happen with new wood also. Especially lumber that comes in from other parts of the world. The eggs and larva can remain dormant for over a year and the there is no way anyone can tell they are in there. Needless to say I will never be doing a system again with a wood stand unless it's just the shell that goes around a metal frame. Just wanted to put this info out there so you guys are aware of the possible risk. It's not common but it can happen.