I haven't gave them full strength nutes yet. On day 7 I fed them some Big Bloom (0.01%-0.3%-0.7%) at 1/8 strength, and I actually seen them dancing to it. They exploded. I transplanted on day 9 (4 days ago) and watered with reg water. Two days ago, I watered them with 1/4 str Big Bloom but nothing really happened. They aren't due to get their first round of N-heavy Grow Big (6-4-4) until Monday, but I think I am going to dose them up with half str Big Bloom and Grow Big when I water them in a few hours, instead of plain water like I was going to.

N deficiency could very well be... My medium right now is 65% potting soil and 35% perlite. The soil analysis is (0.21-0.07-0.14). Not very strong, I would think after 2 weeks or so of water every 2 days would drain that pretty quick.

Thanks for all the help so far; please let me know what you think of my solution before I do something terrible and have to start over

The rusty spots seem to be getting worse =(.

GetThisOrDie: I have the tester you suggested ordered, but for now I was just testing my plain distilled water with the drops. The way I tested the nute solution was to mix it up, let the particles settle, then skimmed the top of the clear water for a test. Its the best I could do for now.