Nitrogen def or nutrient overburn, please take a look - LOTS OF PICS!

U can use RO and that is another added bonus just let the water sit for 24 hours and see what it is at if it is under 150 u dont need to RO but if u have a home RO then sure use it. if u are buying from HYDRO store no need to waste your money. just make sure to check your ph every morning or night and adjust. and the swings in ph from 5.5- 6.1 is good because u get all the nuts

Awesome, thanks mikmike. Gonna post pics later on to see how they do after the cal-mag

yea lower the ph to 5.5 so they can absorb all of it and give it about 2 days but those leaves that are yellow will fall off. but u should notice no more yellowing

EDIT: No prob we are a community here and happy growing man :P

Those roots should be white ,you have a pathogen issue. With the h2O2 what grade is it (%). if 50% grade use at 100:1 , the 30% grade at 60:1 the 3% grade at 6:1 and this has to be added every 4 days to work properly.

i have noticed though that sensi grow stains the roots, i tryed the H202 in my grows and it did not make them pearly white. they stayed the same.

Originally Posted by *BUDS

Those roots should be white ,you have a pathogen issue. With the h2O2 what grade is it (%). if 50% grade use at 100:1 , the 30% grade at 60:1 the 3% grade at 6:1 and this has to be added every 4 days to work properly.

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They are white, I guess the lighting conditions werent good The H2O2 I'm using is at 29% btw.