I set the cuttle tank up this morning. It took around 5 hours to get it all operational.. Cloudy from substrate and minimal live rock because im going to clear up the scrathes and glue the aquascaping the way i want when the time comes. I will take some pictures when the water clears up. I used 40 pounds of agronite and 40 pounds of sand for substrate... No bio balls in the system yet, or any livestock. I dont plan on doing any of that for alittle while yet. Im still unsure about some of the things i want to do with it some now i can just take my time and plan things out. I have a slight problem though, I ran out of RO water this morning and given its Thanksgiving there was nowhere to get more, so i had to use some water out of the taps... :( i hope this doesnt cause a problem.. I have no knowledge of bad agents in out water besides the basics. I know its rich in iron. Thoughts on whether i should try to rid my tank of this water through water changes or other methods? Will charcoal work ot help filter out some if the bad if there is any? Thanks I will keep everyone posted on the build, and develepment.