Color on test kits for PH ect are usually between somewhat. I found they never really match the piece of paper.
You should buy yourself a calcium, alkalinity, and magnesium test kit next.
If you want to run a reef you will have to keep these in check.
Buy the Salifert ones they are good and not too hard to use.
You can also get a PH probe that will give you a more exact reading on your PH.
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150 Gal system 3'x3' 400W M/H, Bekett skimmer, Dart return,1/4 HP Chiller
180 Gal Drop tank, LED lights, Bubble master 250 skimmer,Hammerhead on a closed loop, Speed wave return.
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