Northern lights automatic- 250W HPS

Reedius Hey guys this is my first indoor grow. I started off using a comercial brand of universal potting soil and I added some organic horse fertilizer. I put them under a 250w HPS agrolite gro and flo lamp. Everything was doing great so far.

Reedius So I started having some problems. It looked like a nitrogen issue relating to improper ph values. I decided to change the substrate to a more appropriate brand (compo sana) and so I did a very careful transplant.

Reedius After the substrate change/transplant everything started to go normal and I began to see normal growth. I started applying some Greenhouse Feeding Grow nutrients.

Reedius I started doing LST which is the first time i tried it. Plant growing without noticeable problems.

Reedius I continued doing LST and started to do some defoliation.

Reedius This gal is going great, growing in height and beatiful flowers starting to form. The last week i've been giving it water corrected with vinegar( to achieve ph 6). I bought some biobizz nutrients this week and gave it some bio bloom and top max. But I noticed after a couple days that the top bud leaves are not upright as they should and the color on the leaves is starting to change. I did a small flush just in case it's excess nutrients, let's see how it goes. I've eliminated excess heat and lack of water as potential suspects. What do you guys think?

Reedius After a troubled week she seems to be back to nomal I think, the leaves are back up and the buds are growing good it seems. I removed some burned leaves and opened her up to allow light to all the buds. Do you guys think I should have removed some of the lower buds? Since it's my first time with LST and indoors I'm a bit weary.

Reedius Well it was a tough week. It started ok,with some good flowering and bud growth but going in the middle of the week I had the impression that all my plants needed a little more nutrients so I decided to give some more top max and added some silica, bad idea! It increased the ph too much and she just stopped growing and a lot of yellow rusty leaves appeared. I decided to flush her with some low ph water with top max. Gonna see how it turns out, if she doesn't bounce back i'll just harvest her.

Reedius Well it was my first indoor grow so there was quite a lot I had to learn and some mistakes happened with this lady, but even though I had to cut her early, she still manages to get you nice and high.