Back again. Plant problems in CoCo

Hey everyone. I have posted on here a few times and have gotten some good help through this page. I am currently growing in coco and am in the end of Week 6 flower of Pineapple Express. About a week and a half ago i noticed some leaf color changes in a couple of my plants it is progressivly getting worse and also noticed that a few gnat like bugs were flying around but no Larva in the coco that i can see. Sooo i ordered some neem spray and a few sticky yellow cards and put them in there today. I am feeding at 600ish ppms of nutes with tap water and i have been trying to swing my ph between 5.6-6.0. The nutes include canna A and B ,Rhiztonic, Cannazym, and canna Boost My runoff is 650 and a ph of 5.8. I guess i am just wondering what your thoughts are on them. Thanks in advance.

Im thinking maybe a mag def? Im not the best at deficiencies

Cocogrower420 said:

Im thinking maybe a mag def? Im not the best at deficiencies

Click to expand...

Looks like it could be but it’s hard to tell for sure with no close up of effected leaves.


Try to take a pic of as many leaves exhibiting symptoms however slight those symptoms are.

Usually magnesium starts with interveinal yellowing Of the leaves.


But in all honestly your plants are looking good and pretty healthy besides a few leaves.

Personally I like to throw a pinch of Epsom salts on the top of my coco once every other week and water it in with my feeds rather than mix it up in my nutrients.

Certainly got some symptoms of mag def.
Like Jondamon said though they are looking very good overall.
I usually add Epsom to warm water until dissolved and then add that to my nutrient mix.

Awesome. Thanks for the feedback guys! Dosnt look like my yield will be as much as my last run whth two plants but it should he alright. I have some close ups of the symptoms. Ill also add some ebsom salts into my next feeding. No gnats on any of my sticky cards so i guess i can rule that out.

Cocogrower420 said:

Awesome. Thanks for the feedback guys! Dosnt look like my yield will be as much as my last run whth two plants but it should he alright. I have some close ups of the symptoms. Ill also add some ebsom salts into my next feeding. No gnats on any of my sticky cards so i guess i can rule that out.

Click to expand...

In my opinion it’s exhibiting a slight Mg def but nothing too severe.

Epsom salts will Definately help.

Make sure if you use the Epsom salts that you adjust your total PPM accordingly as your also getting some leaf tip burn and could probably do with backing off the PPM a little bit.


Personally when growing in coco every couple of weeks I run a straight week of feedings at 50% my usual strength just to make sure that any built up salts etc have chance to leach out a little bit.

jondamon said:

In my opinion it’s exhibiting a slight Mg def but nothing too severe.

Epsom salts will Definately help.

Make sure if you use the Epsom salts that you adjust your total PPM accordingly as your also getting some leaf tip burn and could probably do with backing off the PPM a little bit.


Personally when growing in coco every couple of weeks I run a straight week of feedings at 50% my usual strength just to make sure that any built up salts etc have chance to leach out a little bit.

Click to expand...

Good to know about the PPms when feeding Epsom. Must apreciated! Im gonna start backing off as well

I can't tell you what your problem is but all I know is that I grow in coco. I feed nothing but calcium nitrate, a micronutrient mix, and monopotassium phosphate. I never have any issues with deficiencies or anything. All these fancy nutes and additives people use seem to cause more problems than not. Rhizo this, cannazyme that. None of it is needed. Keep it simple. Grow beautiful healthy plants.

Ill have to look into that! Have a regen you follow for feeding?

xtsho said:

I can't tell you what your problem is but all I know is that I grow in coco. I feed nothing but calcium nitrate, a micronutrient mix, and monopotassium phosphate. I never have any issues with deficiencies or anything. All these fancy nutes and additives people use seem to cause more problems than not. Rhizo this, cannazyme that. None of it is needed. Keep it simple. Grow beautiful healthy plants.

Click to expand...