I just added 50lbs of VERY LIVE Sand to my 135... That was a big bucket of sand!!!

When I was adding the sand I noticed an ammonia smell where water was pooling at the top of the bucket. I found a large turbo snail shell that seemed to be causing the smell but If that guy died you can bet that plenty more did too. I threw that shell out and added the entire bucket of sand, causing quite the cloud. I noticed a small spike in amm. (up to .25 max) but that was the only negative. As a matter of fact I probably fed my carnation coral with the cloud, he looked great for 2 days

This is just a story to help you with your research... I'm not suggesting that you do as I do, I'm actually pretty close to an idiot, so dont follow my lead, but I did get away with the ole' sand dump and run without any real bad stuff happening.