[quijibo]

Hi,

I currently have a crisis situation, I cant figure out whats wrong with my 6 week old plants.

The setup is:

1. Soil
2. Regular potting soil with some perlite.
3. Indoors
4. I dont know the strain.
5. 6 weeks from seed.
6. Metal Halide 400 Watts.
7. About 2 feet from top of the plants.
8. I water every other day, I use drinking water, which is quite soft.
9. I started guano based liquid fert after the plants were 1 month old, once a week, I dosed 1/2 of the recommended dosage. Not sure about the NPK. Had some sulfur def problems last week, I solved it with some Epsom salt.
10. The soil ph reading is around 7.4
11. around 25 degrees celcius, I dont know the humidity, shouldnt be too high.
12. Half of a 2.5 litre coke bottle
13. No bugs.

It doesnt show clearly in the picture, but the area close to the veins on the leaf is real dark bluish-green. Old Leaf edges are turning brown then dying.

Thanks