thanks everyone for the info! I really like this community!
I think I'm switching to a drip method from now on. I've seen all sorts of methods used and the drip seems to be the least intrusive... For the water testing, I brought my water in to a LFS and they tested the same levels that I have, so that is good news! I'm hoping it was just a fluke with the tang. While at that store I decided to purchase two damsels. It's been a few days now and they have been doing great! No signs (knock on wood) and ANY issues thus far. Time will tell.
When I fill the vials, I fill the bottom of the meniscus to the line on the vial. I researched digital monitors (bad eyes) and I'm surprised to see that the typical things to monitor (ammonia, nitrates, etc) are very pricey. Not sure why. Now to post a new thread about my PC lights!