Yes, there was a small bottle of liquid Iodine solution with the idoine crystals in it. Again, didn't notice any leak in that though but you have got me thinking. If it did leak, there was no discernable drop in the liquid fill level in the Iodine bottle.
Could Iodine fumes do this. The bottle were all stood upright, so leakage seems unlikely.
I think i'll do a test and tip a bit of the iodine and AM solution onto two of my plattys that still has some clear plastic left and see what happens.