agreed that need to on skimmer during cycle period but if u want i recomemd you on after 2nd week 1st mix saltwater wait till 2 days later then add live sand like this it won't toxic ur live sand and kill it off ur main oump for 24hrs let it rest down then add LR spinker abit of live sand on ur rock like this it seed it very fast and cure it that what i ttry intro market prawn for 48hrs only take it out let it run for 1week w/o skimmer and on after that remember not longer then that as Nutrient will build up too much if nvr on by then end of cycle it'll be too late and ur rock won't be cure at all, ok after on ur skimmer let it run for at least 4weeks and do test once a week to see the parimeter k sorry for bad engish and sentence