many years ago I had to tent my house as well.
I removed whatever fish and coral I could and put them in a 5 gal bucket and left that at a neighbors house. Everything else stayed in the tank.
I purchased on eBay a few cases of Nylofume bags. They are big bags (about the size of a small garbage bag) made to store boxes of food during tenting. I taped together a giant bubble made out of these bags (double ply) and sealed the tank stand , filter, pumps, etc and sealed it to the floor. tape bags tape bags tape.
Tenting happened, I put the stuff back..... I didn't lose a single coral or fish.
I removed whatever fish and coral I could and put them in a 5 gal bucket and left that at a neighbors house. Everything else stayed in the tank.
I purchased on eBay a few cases of Nylofume bags. They are big bags (about the size of a small garbage bag) made to store boxes of food during tenting. I taped together a giant bubble made out of these bags (double ply) and sealed the tank stand , filter, pumps, etc and sealed it to the floor. tape bags tape bags tape.
Tenting happened, I put the stuff back..... I didn't lose a single coral or fish.

