ok sorry, this is the first time i ve grown. i am using 2x20w fluorescent bulbs, plants 3 inches from the bulbs, the soil is organic but im am trying to find out the specifics today. i got the feeling the temperature was too high or my area is not venhilated enough, i dont have a themometer, but i gave the plants more air by opening a flap in my grow area.hopefully this should lower the temperature too. My friend grows using the same soil and lighting ect but he has a slightly larger area to grow in with better ventilhation which is why i now think it was the temperature or ventilhation. also thinking of adding Coz using a yeast solution, is this a good idea?