New grower and maybe in over my head  

Active Member
Cannabis Fan

Hello growers,

I'm a long time Gardner but im new to the cannabis game. I live in Canada and as of October 2018 we're now allowed to grow cannabis at home so naturally I took this upon myself to jump right in and get growing. Growing fruit and vegetables outdoor in soil using only organic fertilizer I decided to give coco a try. Not knowing anything at first I bought no name coco and started my plants off. They started in medium size Dixie cups and after two weeks were transplanted into 3 gallon fabric pots this time with Canna brand coco.  They adapted to the new pots well but after a week started to show some issues. The white widow auto was the first to show issues her bottom leaf tips and along the leaf edges started to yellow and eventually turning brown/blackish and get crispy. The newer upper and middle growth shows interveinal chlorosis and believe that the growth has been stunted cause it's now approaching 30 days old and it's only a little over a foot tall. The other plant is a purple kush photoperiod and it's not showing the yellowing of the leaf tips but started with the newer growth having interveinal chlorosis and now pretty much the whole plants is affected I believe the growth has been affected as well cause it's only a few inches taller than the widow.  I also planted 2 lemon skunk autos and 2 blueberry autos  because of the struggles with the first to as an insurance. This time straight into 3 gallon fabric pots with only Canna brand coco. Now 2 weeks into these new ones I'm seeing the same browning on the very bottom leaf tip and it's working it's way up. I'm now really worried that the first two plants have been affected to the point where they won't reach their full potential and I'm now seeing the same thing for the new four but a lot earlier. 

I use Remo brand nutrients with r/o water. Water the plants with a ph of 5.8 and the runoff is always +150-300ppm of the input,output  ph of 6.0-6.3. The white widow and the purple kush are in a 5x5 gorilla grow tent with a optic 4 led. The lemon skunk and blueberry are in a 4x2x6 tent with a electric sky es 180. Both tents temp with lights on are 80-82 and lights off 72-74 RH is 40-50%. Both have multiple clip fans to move air around and  both have exhaust and fresh air intake fans. 

I recently discovered this site and then realized all my faults but I just don't have the experience with growing in coco and bottled nutrients so I'm left to what I've read and watched on YouTube and I can't seem to nail it down. So I'm reaching out to this grow community cause one things for sure you guys and gals know your coco and I'm hoping you can rescue this newbie from a possible sinking ship. Thanks for the opportunity to be a part of this community and hope to learn a ton and meet some fellow growers.

shout out to kushman he found me on instagram and also told me to check out this site.

best regards,



Posted : 11/01/2019 8:28 pm Californiakid, Kushman and DrCoco ALT liked
+ Show 2 comments
Esteemed Member
Known Grower

and while you are waiting for the doc, start digesting his website.  It's a wealth of info on growing in coco. 

Posted : 11/01/2019 9:53 pm Uluwatu88 liked
DrCoco ALT
Member Admin
Expert Grower

Welcome @uluwatu88

I am happy that @kushman found you! Good job Kush!

Interveinal chlorosis sounds like classic Magnesium deficiency, which is really common in coco especially in certain management styles. So a few questions for you. 1. What are you using for Cal Mag supplement and what dose? 2. How frequently do you fertigate and do you ever provide water without nutrients or CalMag? 3. You mentioned that the run-off is generally close to range (plus 300 PPM is too high for my tastes), but you didn't mention what you inflow target is, so what is the inflow EC or PPM?

Ca and Mg issues in coco are really related to the total dose that you can deliver. You can increase the dose to an extent, but you can also increase the frequency of application.

Pictures would be awesome!

Again, welcome! Happy you are here

Posted : 11/01/2019 10:23 pm Californiakid, Uluwatu88 and Kushman liked
+ Show 6 comments
Active Member
Cannabis Fan

9011601B 47F7 4ECB B60B BBFC5B7DFF67
7D2843BD 5B45 4814 96D0 4FE5CEDC7FE3
08AB0456 9915 4309 8921 2F1C415FAF5E
98A7F052 EB9B 433C B3D8 958183BF23B3
EAE26E98 CB10 4DDC 80A5 68B5ACAA3AF5
14D93D41 25B0 4571 8A90 60D097E45458
A875CF9C 3615 45BF A3C1 13615333DDF7
4D61F219 96E8 43FF B66F 3EF137F330DA
DF6546C5 E4CC 4EA3 9827 88D417568324
145F4309 FBE8 4147 BEE3 123858D79850
EA288658 FFA4 4D0C 8FEE A48496133167
3798C71F C18F 4A9B 8D89 B19BCF00103F
C121E565 079F 4EB2 AF1F 635D9AC48445
3A4C194D A317 4B8F 8C24 8D14D9A05D0D
E029DA25 436F 4ADB 980C 55136234B362

Posted : 12/01/2019 11:21 am
+ Show 7 comments