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I usually keep it at 1.0 and 1.2 EC. The problem was it was a new meter that I calibrated wrong so when I thought I was at 1.0 I was really at 0.6 Plants aren't having any issues because I caught it fast, but EC wasn't going down either, just PH falling. I don't follow any bottles beyond the...

Yeah I got myself one of those Blue labs mounted meters that give the info for pretty much everything. Did I need it? Absolutely not. Is it worth saving my old disabled back from bending over to check? Damn right.

Thanks! I thought it was, just wanted to make sure. When calibrate it to that EC the PPM came out as 480 (which obviously didn't match the bottle) and that is how I discovered my PPM meter was 700 scale, and why my plants PH was falling (I was underfeeding)

I recently got a PPM meter that checks EC CF and PPM (700 scale) and TDS calibration solution that is 342 and 1000 ppm. (I am pretty sure it converts to 700 scale. I am at .86 EC currently and 600 ppm.) The solution does not actually say what PPM scale it is on, but says NaCl on it which makes...

Goes to thread on anything to do with MJ: Everybody arguing. Goes to thread on politics: Most everyone agrees.... This is a strange place on the internet.

Thanks again mate ^^ I have now learned to not trust GH feed charts for squat. So does this sound right to you for late veg (8 weeks) 5 ml per gallon Micro 5 ml per gallon Grow, and 2.5 ml per gallon Bloom? Funny enough this is the dose they recommend when using all the additives (twice that...

OK I do check the PPM daily, but learning to go half the recommended strength is new info. How high a risk are deficiencies at half strength? My RDWC usually doesnt need topped off during the week so if I see it go down by 20 ppm per day is that ok until the next nute change? (every 7 days)

Question? I did as others suggested and simplified the nute mix to just 10ml per gallon Micro and Grow and 5 ml per gallon Bloom, the only additive being Cal mag which I used half strength at 2.5 ml per gallon. The PPM is way higher than when I used the chart for the expert line with all the...

Thanks again! I will update this as I go in case someone runs across a similar problem.

Thanks!

Thanks ^^ will this just help the leaves already affected or just new growth?

Right on Thanks! I will do just that. Do you think it is ok to keep the floralicious plus with the trio and cal mag? Can sugar burn the plan? I honestly care more about taste than yield.

I flushed for 6 hours and put in less nutes, do you think I need to do anything else to correct it? How long does lockout usually take to correct?

Also I will do as you suggest and let it get to 6.2 and just adjust it down if it gets to 6.5. It does kinda look like a combo of nute burn and calc deff to me.

Right on. Thank you guys for your input. If I were to cut out one of these additives how much should I adjust the others? As I said I have been using this https://generalhydroponics.com/feedchart-generator program level expert with a water hardness of 40. Obviously General Hydro wants me to use...

I thought ideal PH in Hydro was 5.8 and soil was 6.2?

But if you always run 77 to 80 then your plants water uptake will stay the same for that temp. My temp changed so the amount of water they took up changed. As I said it was only about 74 to 75 in the tent for awhile then it shot up. When the environment changes so do the plants needs.

PH kept between 5.5 and 6.0. Im 99% sure it is nutrient burn from the heat spike causing it them to take in more water. Those burned tips are a pretty tell tale sign. So if you don't flush how do you fix nutrient burn?

The Setup: 4 bucket RDWC 4 x 4 tent Mars Hydro TS 3000 light 80% strength at 30 inches from plants 2 air stones per bucket Water chiller kept at 65 degrees General Hydro nutrients measured in 24 gallons Micro 120 ml Gro 120 ml Bloom 60 ml Rapid Start 60 ml Floralicious plus 24 ml Armor Si 24 ml...

Thanks ^^ flushing with just ph tap water tonight, and gonna do that tomorrow using 75%