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#2
11-11-2009, 06:12 PM
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For those of you who have never seen this before. This picture shows the upper water level line in my water change brute trash can. I use an RO/DI system that has always tested between 0-1 tds. I've mixed 2 buckets of Instant Ocean, 2 of Seachem, 1 of H2Ocean and have just started a bucket of Reef Crystals in the can. In the past I used to use one can for only Instant Ocean and another for Seachem, the Instant Ocean can became very dirty while the Seachem stayed relatively clean.
Those of you who have never had this happen, do you use your newly mixed saltwater right away or do you let it sit for a few days? I let mine sit for a week before I use it. 
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"We shall dive down through black abysses... and in that lair of the Deep Ones we shall dwell amidst wonder and glory forever." - H.P. Lovecraft Old 120gal Tank Journal New 225gal Tank Journal May 2010 TOTM The 10th Annual Prince George Reef Tank Tour Last edited by whatcaneyedo; 11-11-2009 at 06:15 PM. 
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#3
11-11-2009, 10:53 PM
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After a water change I refill the tank with RO/DI water and let it sit with a power head turning the water.
About 2 days before I want to do a water change I add the IO salt and a second pump to mix the salt. The next day I test for Ca and Mag. I then calculate the required dosage of Calcium and Magnesium to bring the batch to the right levels. The following day I pump out my sump and replace the water with the now completed 57G mix. I then pump 57G of RO/DI from my water top off tank to fill my mix barrel for the next change. Tom R
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