15 days from germination, wildly different results based on strain.

Newb2indoor

Newb2indoor

Well-Known Member
Hello, I’ve been growing outdoors from clones for a few years and love it. As I live in Maine it doesn’t Give me much to do in the winter. So I decided to start an indoor grow for earlier clones. I germinated my seeds February 26 and everybody went into soil on February 28. I have five different strains and I’m using the Spider farmer 2000 for my lighting, and the General hydroponics Nute system (1/4 strength for now based on ppm) calimag and 100% coco coir. I am measuring ppm coming out and keeping it on track. Some great growers say no nutrients for younger plants and some swear by starting them early with nutes in coco, so I went somewhere in the middle I guess. I Should have added perlite but I’m a newbie and I didn’t know. Although it doesn’t seem to be causing any big issues. Here are some of my pics and I’m just shocked at the difference between my strains regarding the size of seedlings. I have restarted another blue dream (nute burn?)and green crack because those seedlings seem to be struggling and almost completely stunted in growth. Any advice from somebody who’s been doing this for a while would be helpful. When should I bump up my ppm on the bigger ones? Had to repot as roots were coming out the bottom. Also I religiously ph everything 5.8-6.2
 

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You can feed between 200 and 250 ppm no more than 300 ppm right now. See how they reapond.
 
Is that coco pre buffered? Make sure you have cal mag on hand you will need it with coco.
 
Bose said:
Is that coco pre buffered? Make sure you have cal mag on hand you will need it with coco.
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I do use cal mag read it was key with Coco. I used mother charged coco 0.01-0-0.01. I didn't feed anything for the first 7 days because of the trace amounts in the soil. Some took off after I started feeding under 300 ppm and some just haven't. I have read some strains are way more tolerant of high/low nutrient levels. I wonder if my Blue Dream and Green Crack are just sensitive. The others seem to love it.
 
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