Water Quality Issues

[bertoni]

<a href=showthread.php?s=&postid=6595530#post6595530 target=_blank>Originally posted</a> by Holmie_D_Klown
I am far from an expert reefer, but I have been told to be careful when disturbing the deeper layers of your sandbed. The anaerobic bacteria living there will release toxins (ammonia?). If you were planning on changing your sandbed, you may want to get opinions on how to safely do this. Anyone?

That's a good point, although the most likely toxin would be hydrogen sulfide, in most cases. ReefKeeping.com has an article on H2S. For removing the sand, I'd siphon it out and have plenty of water on hand for changes.