Pineapple Promises - First Grow!

My first grow! I am growing one Pineapple Chunk in a tent, with a 1000W LED. I plan on using Fox Farm nutrients and small doses of SuperThrive. I'm growing in an organic soil mixture cut 30% with perlite. Wish me luck! Edit1. On day two she started getting leggy (I didn't want her to burn, so I had the light hung at about 36") so I lowered the light to about 14-16" above the plant. Edit 2. On day 4 my 3-way-meter came in the mail and I pH tested the soil. The seedling was not showing stress, but the meter showed a pH around 8 and dry(ish) soil, so I administered about 250mL of water (+ like half a drop of SuperThrive) that I pH'd down to about 6.2. Hopefully this was the right move :)