Whats your PO4 reading now?
This is how its going
Start phosphate minus 300 liter tank
Day 1 ; phosphate 0,048 used 75 gram phosphate minus
Day 2 ; phosphate 0,012
Day 6 ; phosphate 0,048
Used 150 gram phosphate
Day 7 ; phosphate 0
Day 9 ; phosphate 0,08
Used 150 gram phosphate minus
Day 11 (today) phosphate 0,003
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