weird spot on leaves again

daytona675

Well-Known Member
hi everybody .

i made a few grow with the same set up and different strain . always same problem at same time.

forgot to mention : t5 10 bulbs set up all the way . 6500 k in veg and 2700k 3000k and 2 6500k in flowering

my water is from a artesian well from my neighbor . mine is ph 10 and more all year long . the one i used is less that 8 and correct with ph -

i tried different solution but again in this grow same problems happen

it seems to begin in early flowering stage

i search a lot on the web for this particular problems but dont find the same pattern on the leaves .hard to explain .will show you but in few days it will be more obvious . leaves will cracks where the spot shows

right now i am growing black widow auto , early miss auto and berry but like i said it did that all 3 other grow with other strain .

i grow in promix bx with sea compost in it .
liquid organic nutes this time and for the first time .
i had a little dolomite lime in the promix but not a lot .

i had liquid cal mag with dosage on bottle 2 time so far .

i have use a blue lab ph meter that i calibrate every weeks

BUT-------)

I used to put my water solution to 5.8 -6.0 ph with other grow session

but now with someone advice i put my water-nutes at 6.0-6.5 ph

they is a lot of confusion everywhere . i still dont know what is the best ph range . i read that it sould be around 5.8 but other tell higher like 6.5 .

i dont check my run off for now .i know i should . first i want to know what is the start point to put in .


so i dont know if this is related with ph . magnesium calcium ??

calcium and magnesium is for veg or flowering usually ??

thank a lot for you infos
 

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