Quick question for issue in flowering.

Hello all,

I just want to make a quick question. I'm growing in hydro. I don't have many grows under my belt but i'm having good results anyway. There is a problem though which is hunting me in every grow and happens every time after (more or less) the 4th week into flower...

I have a combo EC/PH/Temp meter for constant monitoring and i'm feeding based what i see. For example if i see my EC going down that means my plants need more nuts so i add a little bit more into the mix etc.

When i enter the 4th week in flower my EC starts to increase little by little.. That means i have to lower the amount of nuts i give to my plants. Even if i'm at 1.2 or 1.6 EC the same thing will happen. I use flora series 1 part of Micro and 2 parts of Bloom (same like Lucas method). My plants and roots are very happy, temp/humidity too and i don't have any deficiencies either.. but i can't understand why my EC is keeps rising at that point i.e. from 1.08 to 1.16 in a day (definitely not cause of heat-water evaporation). Isn't suppose to increase the EC every week? The plants don't need more as they grow? I'm very confused..

Any help would be appreciated. Thank you.

Seems like after the stretch they stop eating as much. Maybe its because they need more pk and less n. Try dropping back on the micro a bit and top off with water instead of more nutrients.

That's what i thought too.. These days i top up only with pure water and 1/3 of bloom only.. Today it's a water change so i'll up the bloom and will lower the micro a little bit and see what will happen.. Doomboy thank you very much for taking the time to response!

No problem... my first grow was DWC with the Flora Series. I would have to swap buckets once a week. Literally pick the plant up... roots and all and put into a new bucket. I would mix up a bucket of nutrients using their chart but only 60% strength and thats all it got for the week. I would just check the ph daily and correct it if necessary and top off with fresh water. Towards the middle of flower I would use a lil more bloom. Never had any deficiency problems.