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Ermm well my mate is growing 4 widows and recently all the bottom leaves are starting to turn yellow and die ....is this overwatering, underwatering or something else ...the set up is 600 hps a few fans, intake, exhaust etc in some mixed soil which has perlite etc temp is always hovering above 28 degrees .. i know its a bit hot but new fans are on the way..oh yer he aint using nutes as its first time for him ..i cant work his problem out so i ask you guys :D
plz help xxxxx
if you aren't using nutes then that's your problem! THEY NEED TO EAT
Well it also depends on their age. If they are seedlings, then yes they are possibly being overwatered. If they are older than 3 weeks then they possibly need some nutes.
he was talking about the bottom leaves so i was assuming that the plants had a few upper leaves as well so they must be passed the seedling stage and in need of food. how old are the plants?
What's the PH of the water? and what kind of water,Tap, distilled, RO, rain,
water?