Hey guys Some of you followed my thread on my tank which was about to burst a few weeks ago; I had a temporary tank setup while I waited for my new build. Tonigh I am doing the cross over, and I discovered that the substrate (CaribSea Aragonite) from my old tank (which was stored in a bucket in the sump in the interim) had become a DSB of sorts and when I started scooping it out I noticed a sulphuric smell. Question is now what to do with this sand - the smell is not pungent but definitely noticeable. If I put it in my new system will it be dodgy? (for lack of a suitable scientific term ) I'm worried that if I leave it out for now it will dry and there will be a die-off of the bacteria within the sand anyway. I could always buy a new bag tomorrow, but that's R500 I'm not that keen to spend right now... Any help is much appreciated.