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If you like the 3 part juggling it is fine. Sunshine does not have any nutrients aside from calcium / magnesium form the Dolomite lime added a ph buffer :peace:

I too am very interested in soil test results and also how ppm's on a soil test correlate to a hydroponic nutrient solution. The last tests I had done on soil I had in beds that was producing great plants was so far off of where ratio's would be for a typical nutrient solution that is has me...

Shouldn't you be getting plenty of mag from the Dolomite? What is your process for leaching your soil before reuse?

Where do your EC levels typically land at your target ppm's?

When talking NPK ratios (3-1-2 etc) are you talking about the ratio of the elemental ppm's or the "NPK Ratio's"? If the later, are you correcting for the P205 and K2O reductions?

What are your thoughts on the K:Ca:Mg ratio?

Where did you get this information?

Dennis is a stellar dude. Definitely recommend for any UV lighting needs - weather growing plants or curing UV resins :peace:

Unfortunately / Fortunately Hydro stores are all but dead for the most part in Cali. No more over charging for things like LED's but also no local place to run and grab a few things. What are you spending on bulbs over a couple years in the space each led would cover?

"Eye Hortilux, a division of EYE Lighting International, ceased operations in mid-2023. The company announced it would wind down due to supply chain issues, rising costs, and a shift toward LED products, which made continuing their HID lamp business unsustainable. They stopped accepting orders...

But for practical sense with the state of energy costs unfortunately Metal Halide is from a Bye Gone Era. :( Trust me, I also held on till the end with HID. Hortilux throwing in the towel and stopping production of all of those lamps was the tell tale sign where the industry is headed :peace:

I would investigate EC of media, not nutrient solution :peace:

When I was running in coco probably the best fertilizer I used at the time was CX Hydroponics COCO A&B I actually had that mix lab tested. 7.5ml each of A&B in a Gallon of Distilled water yielded these results. Interesting the lack of Iron. They are clearly putting the iron in one of the...

I am in a cool location. Temps generally 75-82 veg and Flower. Veg humidity up into the mid 60's. Flower always below 60 and sometimes dips to just below 50. Don't have a # for wind speed but the leaves all just have a light flutter to them. :peace:

Exactly - salts just keep twin pushed up in the media making bad zones for the roots. Have you thought about doing a "Slurry Test" like a lot of organic growers are doing? Take a shot glass or so of your coco out of a pot at a depth where theres good root development (yes it will disturb the...

To clarify, this is a bottom watering setup? If so, I'd consider a heavy top down flush to reset the nutrient profile in the media. The "butt chug" concept just keeps pushing things up in the media. Maybe you are accumulating phos/cal and other elements in the media over time and causing lockout...

We are all still learning even after several decades. There is a lot of mis / dishonest info out here on nutrients. I'm still trying to unravel it all myself. One thing for sure - these plants grow well under a wide range of nutrient profiles assuming all elements are provided at a sufficient...

Is that correct that you have no Sulphur? Some of the micro's look very low also. I've been running a scratch mix that looks like this. And getting growth that looks like this in aero/hydro

Thanks, yes it is a DIY build. There are some photos in my current journal linked in my sig. :peace:

I was assuming you were doing drain to waste and sending the runoff down the sewer :peace: