air temp : 27ºC
humidity : 30~40%
water temp : 20ºC
PH : about 6.0 (I adjusted the pH with baking soda (sodium bicarbonate), citric acid)
ppm : 650~700 (tap water 8L, protekt 5ml, mag pro 2ml, foliage pro 10ml, KLN 10ml)
4 airpump and waterpump (15 minutes / every 2 hours) are set.
These roots...