hotrodharley
Well-Known Member
Do you have an EC or PPM meter? Yet? If not I strongly urge you to buy one. The Hannah Primo series are perfect and affordable. You must know your PPM including the water before starting. I suggest starting around 300-350 and monitoring it daily at least. Several times daily if you can. The PPM will be fairly stable and then begin to drop. If it drops more than 200 it's time to refresh the solution by topping it off (I do not recommend this for newer hydro) or changing your res solution.
Start the next time at 450. And repeat. Your ultimate target range should be around 1100. During full bloom, last cycles.
There's guys that run hotter but play it safe.
Start the next time at 450. And repeat. Your ultimate target range should be around 1100. During full bloom, last cycles.
There's guys that run hotter but play it safe.