I thought they were on ice to slow their metabolism a bit. I did float them, but in hindsight I probably should have drip aclimate them. I see their little breathing tubes just over the level of the sand and occasionally I see a plume of debris that is jetted up from them.

Ok, just tested the remnants of water at the bottom of my barrel and they came up yellow as well. I checked the tank water again this morning and the levels appear the same, 40-60. Going to swing by AD today and get tested (I promise, me and the mrs are going to be about today looking at furniture).

On the optimistic side a few more tests and I will be required to get a new test...