my leafs am goin yellow and brown help!! got pics so u can see

elo, cud you pleas tell me y the edges of my plant are goin yellow and brown this as only just stated to happed n ive tryed to look up them problem and there are 2 possiable answers,, and im confused 2 whisch 1 it cud be.

i grow in soil but ive been on these treads long enough to know you have to keep up with your PH levels and PPM what are the readings whats in your water what are you feeding and how often

I dont know Im a soil person also. I think u should grow some soil based so much easier and care free really. Sorry I wasnt much help. But next time get Miracle gro potting mix and just add plain water when watering and dont have to worry bout ph or changeing water and ferts.

Everyone to there own i grow both ways but my hydrophonic system always gives me alot more bud than soil and there is not that much differance in taste.If it was me i would just lower the ph make it around the 5.5 and then higher when its time to put your girls to flower your ph will prob be to high or low do has it says on your feed bottle and try not to get any on leaves when changeing your water i change mine once a week my plants are fed 15 ltrs of water with nutes per week at end of week there is about 5ltr left.You could change your water once every 2 week but i find you get a little salt build up if left.Its worth the effort just check a couple of times a week to see if pump is ok.Another thing i think makes a big differance is leaveing your pump on all the time a small trickle constant this adds oxagen to you roots mine are white right up till cutting plants ready to dry.

my ph level averages between 5.0 and 5.8 this is my 1st time growin in 1 of these systems i did it in soil bt like they say u get mre bud doing it this way i never had this prob and i do get that salt at the bottom the tank and i clean it evry time i hav to refill the tank i mek sure i dont get the plants wet cause it causes them to go brown dosent it.. i feed them on vita link growth A-B it says on the bottle about ph levels that it shud be between 5.0 -6.5 the hightes mine as ever been is 6.1 i dnt let it get any higher, im using a 600watt light. ive checked 4 bugs evry day and they am clean bug free. how many hours do u feed ur plants with a hydrophonic system mine tank is a wlima 8 pot hydrophonic system by the way??

ive dun a bit of lookin about and i aint sure if these plant am mature 2bhon i dnt knw wen u class a plant as mature im feedin these 3-4ml thats wat it says on the bottle bt it says 3-4ml 4 marture plant and it also says 1-2ml for young plants and i think my plant mite hav to much nutes going into them and i think it mite be my prob will giv me ur advice plzz and tell me if my plant am mature???????????????????

does look like nute burn and excessive levels of one nute locking out another

thanks, i will lower the nutes and will the plant reover from it??

they should, but you may have to back off a lot for now. is this ebb and flow or drip?

its a flow drip

thats def gotta be some lockout going in. looking again it looks like potassium and mg locked out together from high salinity-common in hydro growers especially with thos co co pebbles.
u have rockwool in there too?

ye they have rockwool in there

have u flushed the rockwool cubes?

i duno 2 be honest because i had these of my mate who cloned them and hes never had the problem

flush the rockwool cubes with about 1/2 - 1 gallon-and if u keep em where hey r while flushing, u will have to drain the res