Closer to harvest at least bugs are better. Will you try something differ there Mate?
Definitely plan on doing at least a few things different next run. First thing I'm going to do different is start the seeds in smaller containers, probably Solo cups, and keep them at my house so I can baby them for the first 2 weeks or so until it's time to transplant.
When I do transplant the I'm going to crush some mosquito dunks to mix into the medium to try and hold back the gnats. I'm also going to add the distribution drippers so the pots should be watered much more evenly.
I had a problem dialing in the Blumats using the digital sensor I bought. Even though I had a number in mind I wanted to achieve the sensor read wildly different depending on where I placed it in the pot and when the last time it watered. Next time I'm going to homogenize a large batch of medium to the correct number of millibars, fill the pots, and then dial in the Blumats to that moisture.
There's also a good chance I will ditch the coco and go with soil as suggested by a few guys here, and I'll of course make sure to do better with the feedings. I think making these few fairly simple changes will solve most of my current issues, which will leave me time to make a whole new set of problems. As for the current grow I plan on giving them a tea every 7 days or so for the next few weeks, hoping that will be enough to get them to finish up with some grace.