I have been growing for a little over a year, a little bit after growing and recreation use was legalized in Massachusetts, and am on my fourth grow. Here’s my first grow journal. My plants were fine until flowering and then things went south. But in the en they made it through their struggles with the help of the good people on this site.
Now that you are in a coco based soil, and its’ well draining, you can water through to runoff. I said above to be careful of overwater, but I think they look big enough in your latest pics to handle it. In my coco, I water every other day regardless of what the moisture feels like. I did this based on some of the stuff I read that was put out by @garrigan62.
You will want that pH to be 5.8 though and it sounds like you are still waiting on the pH pen. What’s the ETA on that?