EC even better. Tell us the EC when you mix nutes and the EC now.

If EC goes up after a day or so, Then they are drinking water.
If EC goes down then more nutes are taken up.
Nutes fallow the water line. Without water no nutes travel.

I have never seen more than a slight dif in nute uptake. The big dif is in when water levels fall and concentrate the nutes.

Plants also piss in your water or give off waste to keep the EC up. That's why no big change in nutes.
LOC NAR on probation Reviewed by LOC NAR on probation on . My back Ice plant is droopy, help. My black ice plant has been in flowering for 3.5 weeks and for the past week or two the leaves seem to be drooping too much. the bud tops still seem to be growing and everything else in the flowerroom is doing fine. the temp is usually around 75 but since I added the CO2 a few days ago the temp has been on avg. 3-7 degrees warmer. the humidity is at 40%. I am using a waterfarm topfeed system. Iconic nuts. with greenfuse stimulator, Iconic boost, and fossil fuels. The EC is at a 1.7 and the pH Rating: 5