I am happy to read what you posted.
It’s funny, I went ahead last night and soaked the coir in plain water.
Then I ran 10 gallons of full strength Cal/Mag with 1/4 nutes of Jacks Hydro 15-0-0 & 5-12-26 (600ppm was the end result) and Great White beneficials at 6.0 PH.
Put some seedlings in it...