Dude, Please go back to the 400 MH light. 2 weeks old and 1000. You want the MH for veg. HPS for flower. And don't get the light too close at least 2 feet untill they can take it. The color of the leaf maybe the strain but maybe that 1000 burning them up. it's not ferts unless it's leaf tips burning.

And get the temps down in the mid 70's . You need a good amount of fresh in bad out while lights are on. Not so much in the dark. Small A/C's work wonders.
LOC NAR on probation Reviewed by LOC NAR on probation on . 1000 watt eye hortilux hps vs. 400 watt regular mh bulb for vegetative stage well...which one do you think i should use? I have a 4 foot by 4 foot room and temperatures with the 1000 watt reach 88 degrees F. the 400 reaches 84 degrees. the plants are 2 weeks old and mostly sativa. They are in 5 gallon buckets already. i want to branch them out a bit so the veg stage will be pretty long. any advice? Rating: 5