Just a little reminder for anyone who might run a hydroponic system:
The more water in your rez, the easier it is to control your pH. Let me be clear:
The more water in your rez, the easier it is to control your pH. In my experience (when mixing a fresh nutrient solution) the pH slowly begins to rise...for 12 to 24 hours...then it will begin to drop. There's no harm in letting the pH get up to 7.5, slowly. There's no harm in letting it SLOWLY drop as well...the roots will benefit from the full gamut of nutrient availability. This phenomenon is also an opportunity to add some of the more alkaline extras, such as SILICONE, to stabilize the pH. As long as it's dropping, add trace amounts of 'extras' instead of pH UP. You will be rewarded for your attention to detail!
I'm using 6 gallons total:
2 gallons in the rez where the roots reside
4 Gallons in the recirculating rez.
The solution is constantly moving and aerating at every opportunity
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