Mg def. ahhh!

ok well i figured this would happen becuase it has before with other strains, i got some BB in week 3 of veg, i had plain well water at 300ppms with high calcium concentrate. I put some epsom salt in and it jumped my ppms to 500! so i got poland spring water and dumped that in the res, adjusted to 400ppms im at week 3 of veg so im hoping these ppms are ok but i can see now that the plants are curling at this tips and burning, the lower leaves are the worst. I would post pics but they wont help. New growth is good and looks healthy as of now and i already have femal pre flowers yay!, i got 6 more seeds germinating, and next time around im using just plain poland spring water, this is only necessary for me in the veg room, my flowering plants love the well water i have becuase they just eat up all the calcium. a have dark red purple stems too.

ok i took some.

So, red stems are good? Cuz mine are bitchin red! ;)

I'm having a similar problem - my pH is 6.9 in soil, my temps are good, and I'm being careful not to feed or water too much, yet I'm loosing fans and others to a creeping yellow with brown spots.

I tried a slight boost of bloom mix with the last watering but it didn't do anything. Could it be a fungus, and if so, can that indeed be spread by a kind of gnat?

As for giving it some Cal Mag, would a shot of garden lime and water help out?

The red stems are from nute storage, im not sure which nute, so its not bad, but im really not sure what is the cuase of all this. You deffinatly want to watch out for high ppm's nute burn can be a bitch. You would see fungus or anything posing a threat like mold around the base of the plant. I also tried to give some nutes as i havent becuase there young, and it seems like it just made the situation worse, if your seeing problems u want to jump back not add nutes, figure out what the problem is and correct it. leeching your soil might help and then add in what ever you feel should be stable. i dont work with cal mag or soil so im not sure. but browning spots and yellow leaves can be nute burn.

Jack my blueberry's were extremely sensitive to nutes early on (you are hydro right?) and I ended up backing them down to no more than 400 ppms for the first several weeks....tried to move them up but they were not happy. Then towards the end they sucked up huge amounts of nutes like crazy. (that's 400 w/ro water....50/50 Cal Mag and pro grow) Hey I thought you were retiring the growing thing.....glad to see you back.

yeah i was, but i really enjoy it far to much, im keeping it small, tho i could potentially do 6, im gonna stick with 2. im thinkin im gonna run plain r/o water for a day and then increse to 300ppm and see how they sit.

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Originally Posted by BlueDevil

So, red stems are good? Cuz mine are bitchin red! ;)

I'm having a similar problem - my pH is 6.9 in soil, my temps are good, and I'm being careful not to feed or water too much, yet I'm loosing fans and others to a creeping yellow with brown spots.

Me Too- wtf is it? I can't figure it out. The ends get yellow and then the small brown spots appear. The tips get crispy and curl. Yuk

I tried a slight boost of bloom mix with the last watering but it didn't do anything. Could it be a fungus, and if so, can that indeed be spread by a kind of gnat?

As for giving it some Cal Mag, would a shot of garden lime and water help out?

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I gave mine some water and then top dressed them with Black Gold, as a way of giving comfort to my plants- I have no idea if it will help:o

oh yeah and of course hydro! At what stage did you finally start to give them real nutes?

Red stems are from lack of any one of the three macro nutes. When the Def. is fixed the stems do not change back but the new growth will not be red. Looking at a long plant stem you can see the abuse it’s been through.


Jack, I thought you were quitting growing. What you some kind of not-quitter, huh!
What you cant handle quitting,

haha do be honest i really can't... i have so much stuff it would be a waste not to use.

Well I started them at 300 and they were baby baby seedlings....did great...went up to 400 after a week and they started looking sort of dark green. This was my very first hydro grow so I thought that was a pretty cool color (they WERE quite pretty bluish green) so I upped it to 500 the third week before I finally got a clue. I think I ended up keeping them at about 400 until they were about 5 weeks old. In blooming they were nute monsters!!