Capulator
likes to smell trees.
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- Apr 1, 2011
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i will be running hydroton/coco and perlite coco to compare.
Oh yeah... preach the Gospel! Having just run the chowmix over an RDWC, I can see where Dank's enthusiasm is coming from. I ran 5 gallon buckets 2/3 full, so the plants never had much incentive to drop roots into the water, but I did regularly drop the topfeed pump into the head bucket and run the RDWC water through the coco. I was generous with watering portions throughout, specifically to provide a good nutrient base in the water. The plants loved it- may as well have been fresh nutes to them, and the composted earthworm castings and other organic amendments made to the coco all drizzled down into the RDWC as well, continually re-inoculating it with beneficial bacteria.
Dank, if you're running relatively high humidity values that may account for your plants' desire for such high EC. It sure works that way for me...
I didn't use cal-mag in RDWC and didn't see a problem, but running coco I need to add plenty, and when the plants' roots do hit the water, they seem okay with the mix.
This is exactly the direction I'm heading as well- are you running coco or chowmix in a bucket above the water?
Hey Cap, you listed 6 items in your recipe, Jacks hydro, Jacks Cal nitrate, Cacl2 (Calcium Chloride), MKP (Mono-potassium Phosphate), K2so4 (Sulfate of Potash), Epsom salt, and MOST (Micronutrients). However I noticed you also ordered MAP (Mono-ammonium phosphate) and also Magnesium Nitrate. Are you not running these in your formula? Or are they for your Bloom booster recipe?
I see ttystikk recommends a high level of Cal/Mag for use in Coco, do you have a recipe of making your own as an additive?
Fucking love being right.
Plants told me.
Showed me pictures and shit.
Try having a dying body for a while.
Changes things, different connections are made.
Sorry bout that, guys, dealing with a whole lot of bitterness right now.
Hey Cap, you listed 6 items in your recipe, Jacks hydro, Jacks Cal nitrate, Cacl2 (Calcium Chloride), MKP (Mono-potassium Phosphate), K2so4 (Sulfate of Potash), Epsom salt, and MOST (Micronutrients). However I noticed you also ordered MAP (Mono-ammonium phosphate) and also Magnesium Nitrate. Are you not running these in your formula? Or are they for your Bloom booster recipe?
I see ttystikk recommends a high level of Cal/Mag for use in Coco, do you have a recipe of making your own as an additive?
any observations on the level of chloride you have in your nutrient solution?
CaCl2 is 36% Calcium and 64% Chloride, so if whatyou have is the anhydrous 98% Calcium Chloride, you have a product with 35% calcium and 63% chloride.
0.2 gram of this in one gallon final volume solution gives you 18ppm calcium and 33ppm Chloride.
your typo is what piqued my curiosity, cause that had you just over 100ppm chloride and I was wanting to know how that was treating you, cause thats on the high side of things.
just because you have non-chlorinated water does not mean you have no chloride in it. Most likely you have some in your source water also.
Chlorine and chloride, are not really the same thing.
Hey cap, have you ever considered that using all nitrate nitrogen can cause your media ph to rise? I've been reading more and more into it lately and am just curious because I think it may have something to do with what appears to be late stage cal deficiency and necrotic leaves since switching to jacks.
CaCl2 is 36% Calcium and 64% Chloride, so if whatyou have is the anhydrous 98% Calcium Chloride, you have a product with 35% calcium and 63% chloride.
0.2 gram of this in one gallon final volume solution gives you 18ppm calcium and 33ppm Chloride.
your typo is what piqued my curiosity, cause that had you just over 100ppm chloride and I was wanting to know how that was treating you, cause thats on the high side of things.
just because you have non-chlorinated water does not mean you have no chloride in it. Most likely you have some in your source water also.
Chlorine and chloride, are not really the same thing.
yeah add MAP if you want to make your own MOAB.
Although the formula I detailed in the beginning of this thread is working just great, I realized that adding Protekt is fucking with my K. Duh!
evu, I think he's saying he forgot to account for the added K in Protekt when he calculated his ionic ppms.
Cap, here's a quote from an article that illustrates what I mean:
"The form of nitrogen in your fertilizer is what causes substrate pH to decrease or increase. Nitrogen is the most important pH-controlling ion because it is the only element required by plants that can be supplied as both a positive cation (ammonium: NH4+) or a negative anion (nitrate: NO3-) and accounts for more than half of the nutrient ions taken up by the plant. Fertilizers high in ammonium have an acidifying effect and cause substrate pH to decrease, and the opposite is true for fertilizers high in nitrate (Table 1).
When ammonium (or other positive cations) is taken up by the plant, a positive charge enters the root. Plants must remain electrochemically neutral, and thus the roots secrete positively charged H+, which reduces the pH (Figure 2). When nitrate (or other negative anions) is absorbed, the roots balance the negative charge by absorbing H+. As more nitrate is absorbed, more H+ is removed from the soil solution, and the substrate pH increases (Figure 3, see page 46)." Source
I know maybe nitrogen may not account for half of the nutrient ion uptake like this article says, but I'm thinking it still probably has an effect. I just got done with my first run in straight H&G coco and am getting ready to try some 50/50 chow with hydroton.
Spurr used to talk about this a lot, I think he used something called the pour-through methond to test media ph but I'm not sure what that is exactly. And I'm pretty sure the media ph is independent and not too highly effected by whatever ph you water at.
in what ways was the Protekt affecting your K? I noticed you went from 1 mil to 5 mil of silica. How does this help if Protekt/silica was adversely affecting your crop
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