Thank you both for the replies.
I'd relocate the air pump to another room and run a long hose, and then cover the tank, while leaving a downward path open to allow air out. That way, you'd keep your aeration, as well as the heater and filter, while preventing any of the sheetrock dust from getting in.
Do you mean put a very long airline on the air pump so it can reach the tank from another room? I do have a lot of extra airline- I really use the airpump to circulate a 'dead' corner in my tank, but if I saran-wrap it all up can see how that will help air stay in. Good idea.
Another option instead of plastic is a couple of towels (they'll let air move through, but not dust).
That is what I used to cover it when they painted. Towels would get ruined, though- i saw this happen when they did work in our basement. Any cloth that was coated in the dust, if I tried to wash it later just turned into drywall mud again. Had to throw them away. However, we do have enough extra towels I wouldn't care about sacrificing a few.
Just make sure that all the cleanup is complete (including the walls) before uncovering your tank.
Will your contractor be using any sort of dust control while working?
I've done sheetrock repair with an electric sander connected ro a shopvac to capture the dust. Without any sort of dust collection, sheetrock dust will go everywhere.
I am not sure. I have already suggested a shop vac to help control the dust, and I am definitely going to go in there and vacuum, wipe down all the walls and surfaces (some furniture can't get moved but will be covered) again even after the crew is done w/their cleanup.
Thanks for the help.
Normally I use saran wrap whenever I need to kill mosquito with spray. That thing is extremely toxic to fish and SHRIMP. For your case I will avoid any kind of dust. Who knows what kind of soluble substances in dust that is toxic to your fish. Even if they are not soluble in water dust floating on water surface are unsightly and dust suspended in your water column may not be good for your fish.
You can drain some of the water to keep some air inside.
Thanks for the tip. Definitely will drain part of the water to help keep airspace. I was worried about wrapping it too tight would keep out
too much oxygen but if I leave several inches space empty above water surface that will help.
I think I will employ all the suggestions- run the airline from another room, drop the water level, saran-wrap the top, and then drape the tank as well (so I don't have to wipe dust off the aquarium glass)
I'm still pretty nervous about this and dreading both the prep and cleanup, but you have both eased my mind about the risk of loosing fishes. Will be doing large wc after the cleanup and a 50% wc on fri- my usual maintenance day- so hopefully if any little bit of dust gets in I can mitigate the damage.