Hi Hennie. One of the local reefers has asked me for some sand from my DBS to seed his own new one. This practice seems to be quite common as you often hear of similar requests. I'm not particularly convinced that it's a good idea though. Ok, I know that the DSB will recover in no time at all, but it is a good 5% of the footprint that is temporarily interrupted, and there will be further anaerobic bacterial die-off as oxygenated water reaches new regions. Could this cause a chain reaction? Would I be releasing anything bound in the DSB into the water column? I'd appreciate you esteemed opinion on the subject. Broder.