While i agree with nearly all of this. There is actually someone right now. In the problems section, who's feeding 300ppm. Runoff is reading 1800ppm!!!
What does this tell you?
Especially for a beginner. Metres and charts are essential.
Not recommending a beginner, to use them as a guide, imho, is the wrong advice.
The person having the problem aint a newb either. If he didnt check his runoff, he'd still be chasing his tail.
Metres and a chart, have helped countless times, when i was starting in the trade, and had to fix someones front garden, or backyard they'd fucked.
Gardens are big money, and you dont want to ruin them more. Especially an already frustrated, wifes garden, who you dont know. You'll get sued.
Im sorry about the news
@Littlebirdie
If your roots were salty, it restricts water uptake. They could be sitting in a puddle, and still be thirsty.
If your roots were just sitting there, in a hot, damp mix, rot will happen for sure.
It really is very hard to overwater coco, with the right sized pot.
Good coir can hold up to 30% air, when completely saturated. It really is magic stuff, imho.
I really recommend the CANNA article i posted. I swear that chart is a god send too.
Imho you'd be a fool, not to have one around for a rainy day.