EC @ 1.65 ,pH @ 5.9...
Fitted new thermostat for heat mat, try to stabilise coco temp...
Look pretty good at present...:group:
Thnx Dugg,......with my 2 little outlaws i run an exsperiment myself. This involves the slightly bigger one of the 2, as control in soil (Normal hand water/let dry/water, and the slightly smaller one, which was in a heated tray at 72F, and in 10mm depth of low conc nute 24/7. here is the picture of what it did to my test plant, fed same nute as control ;
the one on the left of shot is the control (Hand watered), the right hand colas the "Test", see the classic overwater indica leaves as they curl at the ends and edges, and "Boat Shaped "V" canna Sign, showing over fert to !! (To Darker Green Chloroplasts)..it's clear to see the difference Duggy. Admittedly, i did not use the Airdome, all other factors where maintained within low stress environmental factors. EC at 700ppm 1.0, at 500ppm(Hanna) 1.4. Temp 25-26c
Duggy, is see you run your ph at 5.9. The well know for soil is 6.5. But i would dispute that, as in previous grows i ran at that 6.5. And even though i cal/mag buffered i still got a very small show of classic "Rust" spots on a few leaves, cal/mag deficiency showed..
That, i now know in part was due to "To High a Ph" at 6.5, at that Ph, Mag & manganese are at the edge of their, "Ph Uptake Range"....see below, and corroborated elsewhere, by reference;
Duggy;...at 5.9 you are bang down the middle of the "Peak Nute Uptake Ph" in soil & semi soil-less mediums. The starting Ph of the "media" is important, as it take along time to "Whareout" and come down to near 6-6.5. When "Alkaline" salts begin to build up in the medium inc a % soil. The salts dry out in the root matrix, (Airpots) and oxygen gets to the salts, and potentiates the salts, so when a re water occurs, the ph "Rises" due to "Accumulations" of "Alkaline" nute salts, dehydrated out of solution, which increases "Alkaline Concentration". Ie Ph tendency to go "Up" in soil and semi-soil-less system's & grow medium.
The john inn seedling compy, i use, is low very low in pre nute "Fine textured with good sand for erricacious" and has a tested ph water sample of 6.3-6.6. Take 10g of soil into 100mm of warm RO (Reverse Osmosis) water, shake and leave for 10, dip ph with ph meter, fot ph test. Cant use tap water for this.
Pre RO water soil several times, in pots "before use", and at cab temp, with 2.5ml/Per/ltr of nitric acid ph down in RO water. And flush down new soil to 5.9/6 ph. RO water (More Effective as no salt in tap water), test soil 10g samples as you go to acertain ph range, (Use Latex Gloves) Add to soil, post re-drying out, & ph balancing,. (Alkaline) epsom salts,..(Soil Buffer)....1Tsp in 5-6ltrs of soil, inc 40% perlite (Acidic) Vermiculite (Acidic) . and you should have a ph matched, (Warm) soil balanced medium. Which cannot be more ideal for Cannabinyium's....AB......
The moral is, 5.9 is the best for soil, as well as DWC !!.....if done right, such as Tangers, 303g rifle shot across our bows !!........in soil !!.....AB.....:thumbs:
:smokebuds:
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