Okay well, I went on my trip. I turned everything off including the lights, circulation pumps and heater. No topping off was done and the aquarium was not covered.
It almost looks exactly the same as I left it perhaps except for a little more green fluff.
Here's a really rough phone picture.
Even the peppermint shrimp was alive.
The caulerpa is battered. I moved the other two algae into the quarantine which recieved the same treatment. They look sort of okay. The gracilaria is sad.
The casualties included a few nassarius snails and ceriths including a stocky florida cerith.
The water is super clear but the salinity is something like 1.029
I'll be bringing that down slowly for the sake of the shrimp. I don't know, I guess this hobby won't let go of me.
I just wish this tank weren't so deep. I am thinking about adding significantly to my sandbed or something to elevate the rocks so that I can reach things without wetting my armpits. Or perhaps just taking some rocks out for a more open scape.