Nice! Gives me hope that the mag deficiency will stop since ill be in 6.3 to 6.0 range! I like those cola's, Pretty filled in, thats nice. Looks like u doin something right! I cant wait for harvest day with this hydro set! I just finished topping them yesterday and LST. Everything lookin good so far! I wont know for sure until i see if the upper leaf's continue to grow without the rust blotting.
I ordered another ph meter so i can have 2 to test for consistency. I calibrated the 1 i have now in tap water thats usually high 7.6 to 7.8 ph and 160 ppm. I picked up some distilled water to calibrate the new one and this current one later today when it comes in. I dont think it'll make a big difference using tap vs distilled when calibrating but we'll see! I'll get ph before and after calibration to see how big a difference.
I use it every week of my grow from veg to flower. Then flush with plain non p.h. adjuseted water. That how I do it lots do it different. I see you have hydrogaurd, if I ran that then I would not use h202 till flush or nasty gooky crap appears. (Hopefully never)
That sounds like nutrient percepitation. How do you mix your nutrients?
Always add what ever has iron in the mix first. Probably your micro, then the calmag, follow with grow and bloom always stir well in between.
I would try putting the calmag before the grow. The iron in the calmag may be getting locked out by the base nutrients un the grow and bloom. Ive had this happen too. After the iron gets locked out the the calcium goes. So that could be your iron and calcium clumped up in ypur bucket.
When i add nutes, i add them 1 after the other in the res. Should i be letting it recirculate for 20 minutes or so before adding in each nutrient? Example: Add Micro, wait 20, add calmag, wait 20, repeat.