Great video and yes, that is really dry soil. I need to stop watering mine as much as I have. It drains right away but it doesn't get that dry ever. The coconut pic that is the one he says to use is exactly what I got from the guys in the market. So yay for that. They chopped it up in chunks, some larger than his were but mostly about the same. The powder he talks about does get on everything and is a pita. I've been dumping it in one of my garden beds, can't hurt. I think I'm going to make up some soil, I have the charcoal, the coco husks, just need some river sand. That might be more difficult as we are so near the beach and there are no above ground rivers on this peninsula, they are all underground in limestone. I also noticed that he is using concrete pots that look very much like the ones I have, very cheap here.
