Hey everyone, Im new to this forum, it looks awesome. I have had a 150 gallon reef tank for about 8 months, and have a couple of questions. Does anyone know if the chlorine treatment "Prime" will build up sulfur in my tank that will eventually have a negative effect on any life? What i do is filter what through a "PUR" filter that is attached to my sink, then treat it with "Prime" and dump it in my tank when I need to top off. I know deionized water would be better, but i guess what I am asking is why, and will the "Prime" and its sulfur mess anything up? I have had no problems yet, but wonder if anyone else has. I'll post some pics soon of my tank and ask what you all think. Thanks.