Bad problem

I posted a few messages about a week ago and I got some help, I'm still running into problems though. Here's a link to the last thread

https://www.rollitup.org/indoor-growing/7815-help-save-plant.html

I don't have new pictures right now so I'll try to describe it as well as I can. I took the advice I was given in the last thread, I transplanted the plant into a different pot with new soil with some perlite, soil, and manure/compost mix, lightly wetting areas of soil with a spray bottle so that the soil was barely moist and I made sure it wasn't compacted. I covered up the lower leaves that were dying in the last picture so that the top of the plant was only about 2 inches above the soil. Then I put it back under two 40w cool white fluoros 24/7.

I transplanted it 5 days ago and it hasn't shown any improvement, the two bottom leaves have turned yellow and gray and are curling upward, the top leaves aren't yet affected. I haven't watered or fertilized since the transplant.

I read around a lot and saw that the curling up of leaves is usually a sign of magnesium deficiency but with the new soil there has to be a good amount of mg there, so I thought it may be being locked out from too much calcium in the well water I'm using or something, so I got some epsom salt diluted 1 tsp in 2L or water and used it as a foliar spray earlier today, I hope this will fix the problem but I'd like a diagnosis from some of the experienced people on here. I used maybe 30% 5-5-5 manure 40% soil 30% perlite this time. Any other info you could use to help me diagnose this I'll be glad to provide, I'll take some more pictures tomorrow to make it clearer.

pH is at just a little over 7

Thanks for your help!

You'll want to keep your ph slightly acidic, your alkaline.

Do you think a soil pH of just over seven would cause it to lock out magnesium or other nutrients? I'll bring it down to 6.5 or so tomorrow and see what happens.

Do these pics help at all?

Magnesium (Mg) deficiency.
Magnesium deficiency will exhibit a yellowing (which may turn brown) and interveinal chlorosis beginning in the older leaves. The older leaves will be the first to develop interveinal chlorosis. Starting at leaf margin or tip and progressing inward between the veins. Notice how the veins remain somewhat green though as can be seen in figure 15.
Notice how in Figure 16 and 17 the leaves curl upwards like they're praying? They're praying for Mg! The tips may also twist.
This can be quickly resolved by watering 1 teaspoon Epsom salts/gallon of water. Until you can correct nutrient lockout, try foliar feeding. That way the plants get all the nitrogen and Mg they need. The plants can be foliar feed at ½ teaspoon/quart of Epsom salts (first powdered and dissolved in some hot water). When mixing up soil, use 2 teaspoon dolomite lime per gallon of soil.
If the starting water is above 200 ppm, that is pretty hard water, that will lock out mg with all of the calcium in the water. Either add a 1/4 teaspoon per gallon of epsom salts or lime (both will effectively reduce the lockout or invest into a reverse osmosis water filter.
Mg can get locked-up by too much Ca, Cl or ammonium nitrogen. Don't overdo Mg or you'll lock up other nutrients.


Figure 14.

Figure 15.

Figure 16.
Magnesium (Mg) Toxicity

Magnesium toxicity is rare and not generally exhibited visibly. Extreme high levels will antagonize other ions in the nutrient solution.

Do these pics help at all?

Magnesium (Mg) deficiency.
Magnesium deficiency will exhibit a yellowing (which may turn brown) and interveinal chlorosis beginning in the older leaves. The older leaves will be the first to develop interveinal chlorosis. Starting at leaf margin or tip and progressing inward between the veins. Notice how the veins remain somewhat green though as can be seen in figure 15.
Notice how in Figure 16 and 17 the leaves curl upwards like they're praying? They're praying for Mg! The tips may also twist.
This can be quickly resolved by watering 1 teaspoon Epsom salts/gallon of water. Until you can correct nutrient lockout, try foliar feeding. That way the plants get all the nitrogen and Mg they need. The plants can be foliar feed at ½ teaspoon/quart of Epsom salts (first powdered and dissolved in some hot water). When mixing up soil, use 2 teaspoon dolomite lime per gallon of soil.
If the starting water is above 200 ppm, that is pretty hard water, that will lock out mg with all of the calcium in the water. Either add a 1/4 teaspoon per gallon of epsom salts or lime (both will effectively reduce the lockout or invest into a reverse osmosis water filter.
Mg can get locked-up by too much Ca, Cl or ammonium nitrogen. Don't overdo Mg or you'll lock up other nutrients.


Figure 14.

Figure 15.

Figure 16.
Magnesium (Mg) Toxicity

Magnesium toxicity is rare and not generally exhibited visibly. Extreme high levels will antagonize other ions in the nutrient solution.

Thanks for the help mogie, I had looked at those pictures and and thought Mg was being locked out by something and that is why they were 'praying for Mg' I sprayed them with epsom salt in solution as a foliar spray 1tsp in 2L water. I sprayed them twice yesterday and they haven't shown any improvement yet, so I was thinking it must be a sign of some larger problem than just Mg being locked out.

It's my last seed of some excellent stuff (not aware of the name), I'd hate to have it die, but it has very slow stunted growth and I can't seem to figure out the reason. Thanks for all your help.

What the smallest possible size a clone could be, the plant is pretty tiny but if they're some way to continue it's genetics I'd really like to.