Day 35 of 12/12!
Did a flush yesterday and today. Did the one Sunday because when I fed on Saturday I checked the rinsate and the pH was 4.3 and the ppm was 1800. I know that coco hold nutes but I never expected this. Was to late in the evening to flush Saturday so I flushed yesterday with rain water @ 5.7 pH. I flushed two times and the rinsate was 400 pph and a ph of 5.4. When I say flush, I taped over the upper drain hole on my Hempy buckets and filled the bucket with the pH'ed water, left it sit for about 5 minutes then pulled the stopper from the bottom drain and let it drain for about 30 minutes then repeated the process.
Well last night I was talking to a grower buddy of mine and told him what was going on and he said that what nutes are not taken up by the plant will settle to the rez and build up salts. I knew this from my days in the golf biz, would see fert settle out in my fertigation holding tanks. I would have to recirculate the tanks before putting out any product. So he suggested that I do this flush more often when using the Coco/Perlite Hempys. He also said that I should raise my pH to around 6 to 6.4 as the coco tends to be lower in pH to begin with. I researched it after our talk and he was right. I though I should of been keeping it around 5.6 which is what I ran with my Perlite/Vermiculite grow.
So this morning I drained the buckets and flushed them twice with pH'ed rain water @ 6.2, letting them drain for about an hours after the last flush. I then watered/fed them with my Lucas formula @ a pH of 6.2. I am now wondering if I am using the correct formula for my nutes, but not to worry now, not going to change so short of harvest.
Thinking 10 days to two weeks for the White Widow and two to three weeks on the CC/BBGA.
As you can see I have a few popcorn buds that I missed at the 20 day of flower pruning. Do not want to remove them now, only thing I am removing are the yellowing fan leaves and for fans that are blocking bud development.
WW
WW
C5, this is the more indica of the two CC/BBGA, shorter, tighter nodes.
C5
C3, the more sativa of the two CC/BBGA taller, wide node spacing
C3
Peace out,
GR