Steve, damn, just drove past your house, shoulda stopped in
Shelley, as discussed, I'll see you later today.
Tony, ya, only one skimmer and the sump is shut down, with no room to even put it in the tank. The O2 dropped but I've got a PH pointing at the surface, which has helped. The new tank is ready(ish) as soon as I can see, and I'll add as much existing rock to the sump as I can. I'll make up 50g of new water just in case, but I think I should be ok once the milk is clear...