Had everything set up for the kalk mix/tankwater bath for when Chris came home. Three parts kalk to two parts tankwater. pH 10.20, didn't get salinity.
Bathed 4-5 rocks separately in the bath for at least 15 mins each, powerhead and heater going. Killed some mysids and a small bristleworm. Saw no sign of the killer worm
Decided our venture was a failure and talked about what we could do next. Since we do not know which rock harbours the bad guy
, we chose to set up a 5g, put a suspicious piece of rock and a snail in it, and wait for a snail (either in the 120g or 5g) to be killed. Sounds cruel, but, dang, they're dying anyway
If we happened to pick the right rock right off the bat and the snail in the 5g is killed and slimed, into boiling water the rock will go and we'll re-cycle it. If a snail in the 120g is killed, then we remove the rock from the 5g and replace it with one from the 120g. We will keep switching rock until we get the killer worm
Seems like a lot of freaking trouble, but neither of us are up in the night to observe which rock the worm comes out of. Too bad it wasn't active during the day or I'd get the little baddy
BTW, the shrooms and button polyps came out of the experience alright.
Anyway, that's my update
