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Man you are really helpful. Thanks a million my friend.

I'm going to start a flush today, from your personal experience do you think they will survive? I'll document it if you are interested.

Doing some research I think it is nutrient lockout due to high sodium in my unrinsed coco coir that I bought from a local market in Bangkok. I'll be the first one to call myself stupid.

It's okay I'm still learning and I appreciate the time you spent to give me suggestions and motivation.

The tds meter I use shows the EC as 0000 so when I measure it comes up to around 1400 which I assume means 1.4. In any case I will try everything you suggested.

Sadly they are autoflower.

I just ordered the micronutrients so hopefully that will fix things. And your plants look so nice, I wish I had the luxury of getting the good premade formulas but they dont sell them here.

I don't think I'm smarter and its definitely 1400 ec. I'll start turning up the water again. Thanks.

I mix these at a 3-1-2 ratio. For cal mag I use magnesium sulfate and calcium nitrate. I'm sure I did something wrong from the start, just dont know exactly what that thing is.

I used the same homemade nutrient solution on my first grow and the results were pretty good so I dont think that is the issue.

You are the best!

Thanks for the input. I didnt precharge( to be honest this is the first I've heard of it). The half coco half soil went perfectly but I'm still determined to figure this coco coir out. Thanks for sharing your experience and taking the time to reply.

Thanks Bose I'll give that a try.

I also just changed the watering system from a spray (indicated in the picture) to a drip ring system so the water is evenly distributed.

Maybe its lightburn?

I get very minimal run off because I made sure it is the perfect amount of water, I can assure you that it doesn't have to do with over or under watering.

I mix my own N-P-K and calmag which worked fine on my first grow (I live in thailand and buying hydroponic nutrients is very difficult and very expensive). I feed them on a drip system for 2 minutes every two hours. Thanks for the reply.

Hi everyone, This is my first post on my second grow. My first grow was half coco/soil and was very successful but this time around I did pure coco with 25% perlite. My ph is at 6.0 and my EC is around 1400. On this particular plant I'm using a marshydro 300 eco that is about 25 inches from the...