Explain this

So ive always been told fox fox farm is to hott to run straight for young cutting n seedlings . So ive always cut in a bale of promix to 2 bags of either happy frog or ff .. recently purchased tds meter so i can see how much im act feeding my plants.. Ive been growing pretty hard for 2 years now so im no rookie.. i just started some seeds so this time i checked every thing before putting them in dirt,i dont remember exact numbers but that not my point.. i filled a dixie cup up with happy frog n poured drinking water through it the water was 5 ppm , the run off was around 550 ppm , did exact same to cup fo pro mix it measured 250 ppm . so i figured hf but its self was a lil to much so for my seeds i mixed a bucket 3 to 1 promix over hp.. didnt even check ppm just went on common sense thinkingthat a lil added happy frog would just bump up my ppm to like 350 or 400 at the max.. a week after sprouting i noticed leaves had some burnt orange spots all over some worse than others .. over feeding was last on my mingd since allz i fed them was distilled water with 100ppm of clonex n calmag just a few drips in a gallon... by looks of leaves the only thing i thought it could be is rust fungus it looks identical to pics on internet n bible so went out n bought an air purifier with hepa filter cuz i thought it was airbourn... But i decided to check my run off off 1 of the worst plants .. it some how was over 1200ppm .. the plant in best shapes runoff was just under 1000ppm...so i did an experiment with both of my soils to see what the fuck happened.. the fact is when i mix my to medium together the ppm of each soil added together... wtf is up with that..... this means the whole time ive been using promix to calm down the strenth of fox farm straight , it actully adding them together.... need some feed back on this makes no sense???????????????????????????????????????????? after i did thge same thing with my well water n my city water and they compensated for each other like i thought dirt would well water is 550ppm city is 110ppm mixed to equal parts in measured around 330 ???

the tds meter i have was only like 35 bucks compared to 100plus is this meter not able to decipher the diff parts

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I use foxfarm ocean forest cut 50/50 with coir and have a 100% rate on my seedlings. A few show signs of nute burn early on but soon outgrow it. My water is well water that measures 7.0 ph and has a mid to high mineral content but I have never used a filter or ro system.

never had an issue with ffof burning seedlings. simple recipe of 2 gal. ffof, 1/2 gal. perlight, 2 oz domolite lime per 2 gals. of soil. repeat. Maybe a tip or 2 shows nut. burn but they love it. trying to make it simple not rocket science like many.

my well water sucks... 650 ppm n smells like rotton egg shit ... my point is why doess ppm go up when i cut somethin

did u try letting the new soil be wet a while before checking runoff, could be why the difference because like u say Purphayz, they should average not addup

Lotts of ppm. Do you run your run-off through a coffee filter before you tds it?

Clones in straight FFOF, nothing else, near 100% success.

straight happy frog is nice with 15% xtra pearlite and h f has mycos

I have always gone 50/50 ocean forest and happy frog. Never a problem with seeds or clones.

I use ffof for seeds. Put the seeds in the dirt and let them be. Have never had a problem with it