Hopefully this isn't too silly of a thread...
I accidentally discarded the two Aqua Mira caps that I use to mix the drops. I'm not ready to buy a new set of Aqua Mira, besides that would only get me one cap and I'm really used to two now. What's the best alternative?
If I have to, I can just use Platy caps (or Coke caps), but they have threads and ridges in them that might make emtpying 14 drops (or 22 when using my BPL mini-droppers) a little tricky.