i have a plant in hyrdo. why is it so tiny? i have had it for 3 months and it still wont get any taller. i feed with dyna-gro ph 6.0 temp of water 70 air 70 its in a giant 7x7x6 foot tent and has one of those window fan from wall mart blowing on it. i have plants in soil which are huge but don't produce as big as i want which is why i switched to hydro. i've seen giant ass plants from hydro and can't figure put why this plant is so tiny. why?