Yeah I misted to get some gunk off and their's enough ventilation..I think a sunleaf got stuck to another one after I misted and walked away because their all fine except that one leaf..haha thanksIs it possible that water was dripping in that spot of the leaf for some reason? It could also be from a pest. Have you checked the underside of the leaf? The plants look good otherwise.
Nah I ph my tap water but I know what yer saying, thanks shes about due for some calmag pretty soon tho..Looks like a little cal mag def. you using RO water right ? problem with that is it has no micro nutrients in it grab yourself a bottle of cal mag from GH or any cal mag and hit it with a light dose and watch those babies turn green !!! also ph your water after you put nutes in!!! looks a little light green could use a little bit more nitogen not too much if your using RO water most likely your problem. RO water doesnt have the trace minerals in there like tap water ..... but with RO water you get more control over you overall PPM of your water and nutes.....