Anyone seen the new labels?? Got a shipment of H&G and it's all new labels!! Wonder if they reformulated anything?
Just wanted to give some info based on recent experiences:
1. Had major salt buildup in soil, drip clean didn't help. Don't know if it was something I did or if the dripclean just doesn't work in dirt.
2. I NEED Calmag in mid-late flowering.
3. Magic green does nothing for me? Whats the correct dilution rate/gallon? I'm running 10ML/G. Too lazy to look at the chart.
4. I love coco. Never going back to dirt ever. Period.
1) I've never gotten salt build up with H&G, with or without Drip Clean, but I do a light flush with r/o or r/o + Liquid Karma once a week or two. 2) I agree, this time I didn't gamble and I'm using it from start to finish. 3)No more than 250ppm, pH 5.7, less is more, but do not dip below 190ish, the Dutch Master Saturator is good too, I hear, Like masonite420 said. However it raises your ppm's a lot, and I don't know if that locks everything out, but the rule for any foliar is never more than 250ppm, pH 5.7, if you make your own sprays make sure to supplement calcium, because it washes out of the leaves when they are sprayed. 4) Amen.
When I called H&G, they said to not use CalMag as their is plenty of Mag in the Aqua formula, they suggested when using RO water, to use something like Cutting Edge's Plant Amp which is just a Calcium additive. Has anyone else used anything like this?
You can use any cal/mag additive, it's very rare that magnesium toxicity occurs in cannabis, if it does happen it looks like you have a calcium deficiency like you never used cal-mag at all, and it's caused by lock-out, flush to fix it. If you want more of just Calcium still, I would definitely use the fertilizer they recommended, but if you are using soil you can add dolomite lime to your soil mix and it will add calcium, as well as raise your pH, but calcium and magnesium are more available at a higher pH
"Cal/Mag" is a trademark name for botincare's calcium suppliment. The term cal/mag is used for many other suppliment brands, but I am referring to this
http://www.americanagritech.com/supplements/cal-mag . It has twice the calcium as it does magnesium and the extra mag doesn't hurt. I have experience mag def without it when using RO water.
I like the Cal-Mag Plus a lot, I have also found that most manufacturers just replicate each other's formulas, I've used Cal-Mag Plus, MagiCal, and CalMax, I have seen little difference, but I just started using this cheaper CalMax stuff, and it may be too soon to tell, I have a feeling that it might just be watered down, it's only 12 bucks a liter. I've also tried the GH's organic CaMg+, do not much care for it, I've also read about it souring synthetic nutes in your res, and it doesn't last very long in general, I can't (don't care enough to) get my res temps low enough for that kind of stuff. That last bit of info wasn't so important, but I'm so STONED off my last crop, I just have a lot of love to share with the House & Garden thread.
I even busted open my Grow Bible to share the ppm's that Calcium and Magnesium become available.
Calcium
Average: 100-150/Limit: 200
Magnesium
Average: 50-100/Limit:75
I know the limit on Magnesium sounds funny, but it's in the book. Ol' Georgy must have been a little stoned when he figured that.
Also, use cal-mag in your first day or two of no fertilizer before your flush, or after the flush, and before you flush again. I usually flush, give nothing but carb supplements and cal mag for the first 3 days or 4 days, and then flush with R/O or R/O + Clearex for 3-6 days (usually only run Clearex for 2 days). Magnesium helps enzymes make carbohydrates into sugars, and Calcium keeps the cell walls strong so those sugars have a clear shot to the flower. Using a little of it keeps your flowers growing and keeps them getting sweeter and tastier for those last days with no more food. But it's better to go 6 days with pure water after sugar and calmag, because cal mag will leave a flavor behind otherwise, I've found that I can cure it out of it after a month or more.
I got a bunch of this good info out of Jorge Cervante's (George Van Patten) Marijuana Horticulture: The Indoor/Outdoor Medicial Grower's Bible. I haven't cracked it open in two years, but I forgot how much good info is in here.