yellowing tips, brown spots, Ca deficiency?

[doco]

I just tested the ph of the soil in one of the containers and it looked like it came in at 6.5...

I guess I'm going to let them dry out another day and see what happens to them. I'll check on them again before bed to make sure they're not drying out...

How did you test the Ph of the soil without watering them? I test the run off after I've watered or fed them. That allows you to see the effect the nutes had on the Ph too.