Demeter's Destiny is the non-nitrate answer to Cal/mag deficiency (along with using Herculean Harvest). There is no magnesium in this product. This is a calcium phosphate. An unbonded liquid calcium, digested from milk products. We use an organic acid to digest the calcium molecules, and the residual chelation materials in the Demeter’s are designed to react with coir fiber and peat moss, extracting natural forms of magnesium and potassium from the medium through chelation. Potting soils are chock full of magnesium, whether it’s a stone meal, glacial rock dust, gypsum etc. Coco fiber can contain up to 40% magnesium. When used as a soil drench, Demeter’s Destiny is bonding to the coir and peat in your soil mix. The microbes are digesting the now bonded calcium and pooping out the magnesium and potassium, making it plant available, where it is now absorbed by the plant in non-metal form. It is very effective as long as there is minimal salt present in the root zone. If the salt level builds up around the roots' stomata, the plants ability to naturally extract calcium and magnesium from the coir fiber is hindered. Generally, this can be remedied by initiating a Herculean Harvest flush/reset because your ppm’s are likely too high in the soil and the calcium is not being accessed through the root zone. This calcium flush will tie up excess salts and turn them into organic compounds that can then be broken down by a microbial field so that the plant can access them again. Follow that up with a higher dose of Demeter’s Destiny to adhere to the coco and peat and allow the microbes to make magnesium and potassium available to the plant again. This is the second biggest selling product, next to Herculean Harvest. I run Demeter’s all the way through up until the last 10 days because it keeps that magnesium flowing, without that hay tasting burn in the end product. The bowl should go out after lighting it, and if it just keeps burning, there is an abundance of magnesium in your final product. This is the one product that many people running other lines (such as Advanced Nutrients, General Hydroponics, Botanicare, House and Garden, Cyco) usually add to their regimen for a nitrate free calcium boost.
I don't think I can dig myself out of that hole. 
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...Alone, with that ratio, the Bloom would be a disaster for blooming at least that's what I think intuitively....
...I do see the tops better now, and I'd say that Ca defc. and light stress,... So, the Demeter's is a good choice for tackling this, Ca and phosphate- 
I like the slightly alarmed look in the pic 3-W's! ...sure would be butt-clenching a bit myself- 
