I'm trying some coco out myself, so glad to see others and follow along. Oh, and you can treat it like soil, but there is a great thread over here https://www.icmag.com/ic/showthread.php?t=241341
where he is using drippers to water smaller amounts, multiple times per day and he got good results. I don't have a dripper system, but i am available to water by hand multiple times per day so I have been trying to follow along with that mind set, of more, smaller feedings, than treating it directly like soil. That's definitely not a situation everybody can do though. The main thing is to not let it dry out enough that the salts start to build up.