???

I dont know how to do ppm and tha. I do ph to 6.0 though. The following pic is of my big bang auto. 9 in a 1.2 x 1.2 tent, 600w hps, in a mix of 60% coco 40% perlite. They are 17 days old and on plain water. Wanting yo know why they are so small with brown patches

Mate....
17 days old, in coco and no food...
Thats why you got brown spots.
Feed her up, in coco you should be feeding from a very early stage ie; 7 days.... and she needs food daily until big enough to flush, generally 5-6 nodes and 5 weeks, and then daily feeds of bloomnutes and additives.

Coco naturaly is a nutrient nuetral medium and has nothing in it like soil.

Dont worry about ppm n shit either. Just feed at quarter strength then increase as plant uptakes what you feed. It will tell you when it wants more food!

Thanks

Ive started giving 1/4 srength a&b, superthrive and zhizotonic

@17 days and that size I'd start over. She is very tiny and unhealthy. If you miss 20% of her life by not feeding to this point she may not recover enough to be worth the effort.

Big smo said:

@17 days and that size I'd start over. She is very tiny and unhealthy. If you miss 20% of her life by not feeding to this point she may not recover enough to be worth the effort.

Click to expand...

True...... but could be a mad freaky ass bitch!

Ive seen some come back, although with a bit of retardation in bud formation.
My last grow of an auto outdoors ended up full retard mode and no one had seen it before ...