Originally Posted by
ladymaryjane
You need to get some calmag asap mate. It is basically a calcium and magnesium rich feed and is used to correct a def and prevent one in very soft water.
In the meantime, keeping the ph to 5.5-5.6 will allow maximum uptake of whatever calcium and magnesium is in the feed already.
As long as they are in veg, you can fix them!!! Incidently, what is your background ec?
lso, an accurate ec meter is equally important to hydro as a ph meter and you will struggle without them.
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