OK, I moved on the weekend. I did not do anything like what i said I would. I ended up bagging the fish, netted the larger fish first. Used two 20L containers to keep some tank water, emptied the rest of the tank until only an inch of water left in bottom so I did not have to chase the loaches (which are extremely quick when they want to be) & tetras around in the plants. Added a few drops of Aqua plus into each bag, added the fish & stacked the bags in a 30L chilly bin. I recommend you put a bag of hot water in the chilly bin which will help keep the temp up. Emptied the remaining water out of the tank leaving the plants in. Put the tank in the back of my ute & took the whole lot round to new house. Pumped two 20L of tank water into the tank using my canister filter as a pump, put the suck end of canister in drum & pumped into the tank via the spraybar so didn't have much substrate movement. Added the remaining water as if I was doing a water change then added the fish as per new fish rules, hung bags in for 30 mins etc. The fish looked as if they were all guna die that night, the neons & serpae neons had no colour & were swimming on an angle & the angels & loaches just sat on the bottom doing nothing. The following morning all was well with no casualities at all. Maybe they were all a bit out of it with the aqua plus from bags then tank for adding water.