Hi, tuesday i put 3 cream caramel auto, germinating on the 3L pot, i lighted on the hps 250W yesterday and today just for keep the temperature on 26/27ºC, if i dont light on the hps it downs to 21º. what happened is that a little white thing it trying to appear, this form http://img442.imageshack.us/img442/967/dscf1195.jpg or this image if the previous doesnt work , should i put this white thing that i dont know the name in english on the ground ? down to the base of the pot ? i wait for replies, thank you