First Time Indoor Super Soil Nute Issues

Grow type: Indoors (Soil)
Temp of room: Night 68-70, Day 73-77
Watering schedule: RO Water 3 times a week on average watered until first sign of drip at the bottom of the pot
Flowering: Mid week 5
Medium: %50 Roots organic with %50 super soil at bottom. (3 gallon Smart Pots)
Nutes: Only water to aid the super soil
Yesterdays PH test (6.6 in, 6.4 out) my PH meter is a little fuzzy but usually sticks pretty close.

Alright so this grow is my first medical grow and I have had more problems with it than trying to stick a plant in some dirt up in the mountains, I have been handling them as they show but unfortunately the problems keep amounting (As soon as one thing is taken care of 3 more things start happening.) I know a lot about the cannabis plant but IDing Nute problems and especially in a medium where all the nutes are in the soil is beyond my knowledge. Problems that have happened as of yet are as follows.

Veg stage Week 5: PM taken care of with Eagle 20
Flowering stage Week 2: Two spotted spider mites (Partially taken care of with Iso/Water/Dishsoap mix)
Flowering stage Week 3-4: First sign of herm on the two shown in the picture and one other. Tossed the most hard core hermi and converted the others back with an etheylene spray.
Flowering stage Week 4-5: Fuckin mites are still at it, Two Pyrethium TR foggers 3 days apart with iso spray inbetween
Flowering stage Week 5: Godbud x SS and SS x Purps (Purps more so) over the course of a day and a half at least 1/5 of all leaves begin to die in the manner shown in images, the next day the GodbudXSS shows the same problems, and now some vegitative plants are showing the same problems.

I can only take silly guesses with the leaf picture map and it has deficiencies but not adbundances and this situation looks a lot more like nute burn than a nute deficiency since it is all over the plants. I am particularly worried about this because of how fast it is progressing, in a day or two I might not even have any plants left to ask about which is a major problem. Note: The one that looks mostly healthy with the spots on the leaves is my Cynex, it has been doing the best out of all the plants. These two being those doing the worst right now. As well I included the HPS pics because they ended up coming out clearer.

I have run somewhat of a flush on the plants, it seemed to slow the progress a bit but it is still going strong.



I hope I included enough info, please help me try to amend this situation. Ideally I need to get to the end of harvest with these, scraggly or not but I have never seen a plant this bad off before.

Another note, The RH is almost always below 50% in the room. Normally between 38%-46%. The Lights are two 600Watt HPS, and are kept 17 inches from the highest plant in the area, and 20+ inches from the plants pictured (Cynex is the exception).

Plants are still progressing, more pics soon. Veg plants showing nute problems now as well. Please help as soon as possible. Open to ideas, these plants might die before I even get a response at this rate.

Having a bit of trouble getting the other pics up but will be working on it. Just did a bit more of a flush through the Purps and tested it with a chemical dropper PH test I bought at the hydro store for a second opinion. Run off is in the 4-5 area with that test which I know to mean "Vurry vurry bad", just to be sure I tested the RO water I use with the chemical dropper as well and it tested 6-6.5 on three tests, 3 on one, and 5 on another. v.v I am sure it is a PH problem of some sort at this point seeing as most of my plants have similar issues that are throughout the plant (lower/mid/and upper on most). So perhaps raising the PH of my soil? how do I go about doing that safely for the plants. Pref a solution that does not involve me buying something (IE household items that are safe).

Also I see baking soda can be used to raise PH in soil but what are the measurements for proper PH control?

Sounds like they needs a real good flush but if your water is acidic then that is the problem. Get some dolomite lime. Home depot has it for cheap. It is good and safe, it will/can raise PH to up to 7 and keep there. 6.5-6.8 is textbook ideal for soil but anywhere 6-7 is expectable for most organic soil growers. Don't make your water super basic and first for a quick fix...start slow and raise the PH over a few days/waterings.

Thanks for the reply, I will be grabbing some tomorrow. Hopefully the problem can be fixed gradually before the plants die off from the lock out.

If you have to, go to the store and get a bunch of distilled water just to flush with till you solve your tap water situation.

Super soil has plenty of power in it that even after a full out flush it still has juice left in it to grow plenty.