I am a ficus grower. I have been growing for about 5 years now. I grow under florescent lights. I just can't get my soil trees to look as healthy as my hydroponic trees. When I move a tree from hydro to soil it seems to lose vigor. It seems to me that must mean my watering is incorrect. My soil mix is 1 part coconut husk chips to 1 part lava rock. I let my ficus get dry to about half way down in the pot. Should I be letting it go till three quarters dry maybe?