Nutrient Confusion Botanicare Products

I have been using pro grow for 4 weeks and usually stayed within 1700-1900ppm, or 2.67mS/cm. Plants look beautiful. Ph between 5.6 and 6.1 through the 4 weeks.

I got got some extra nutrients based upon recommendations but now my PPM is way too high, or is it suppose to be like that?

Currently:

Using 4 Gallons RO water in 5 gallon DWC bucket, this is how my PPM compounds after each additive.

4 Gallons RO Water - PH 6.4 - 14ppm
Cal Mag - 20ml - PH 6.4 - 302ppm
Sweet - 40ml - PH 6.0 - 530ppm
HydroPlex - 20ml - PH 3.5 - 780ppm
140ml Pure Bloom - PH 3.2 - ppm too high for reading. 3.62mS/cm.

140ml Pure Bloom in 4 gallons of water is 1990pppm.

I am using a Hannah GroChek meter and I don't know if it's the .5 or .7 whatever conversion.

This may help:

http://www.botanical.com/hydro/nutrients/BotanicareFeedSchedule_0507.pdf

Do you calibrate you meter all the time? That could be a problem if you don't. I sure you probably do, but just in case they sell PH and PPM solution to dial in your meter. I use the same product, but for soil.

mochadog70 said:

Do you calibrate you meter all the time? That could be a problem if you don't. I sure you probably do, but just in case they sell PH and PPM solution to dial in your meter. I use the same product, but for soil.

Click to expand...

Yeah, I got the meter a little less than a month ago and it came pre calibrated. I also calibrated it again last week just to make sure. It seems overnight I got some severe toxicity of some sort and my PPM were well over 2500 using the charts on back of the bottles. I drained some solution and added some fresh water to bring the ppm to 1700ppm. We will see how they turn out. Here are some pics for reference.

The top one is before the additives, just running pure pro bloom for 1 week at 1900ppm, and prior to that I was using the pro grow at 1700-1900ppm. Never once had nutrient burn. I think the 2nd pic is necrosis maybe? These are the top two leaves of the main cola. The leaves on the bottom of the plant were turning super yellow and droopy. Hopefully this partial water change will fix that.

Plants look good, thats a really high ppm though.. I'd have to guess its a .5 meter,
if you're running your ppms that high and you are still experiencing solid growth.

140 mL of pure bloom to 4 gallons water... thats 35 mL/ gallon. Are you supposed
to run it that high????

That's a lot of carbonates in there, just watch the alkalinity of
your soil closely. And keep your ec a little lower.

Shrubs First said:

That's a lot of carbonates in there, just watch the alkalinity of
your soil closely. And keep your ec a little lower.

Click to expand...

Yeah it's in a DWC bucket. No soil. I went ahead and dropped the ec from 3.62 to 2.4 by draining some nutrients and adding some water. It seems to have done the trick.