Planted Tank Obsessed
Join Date: Aug 2011
Location: Northwest Kansas
Are you moving very far? If so, I'd suggest getting some black trash bags to put the fish in. Using one bag per tank, put the bag into a styrofoam cooler type thing (with a lid). Double bag if you wish. Empty as much water as you can from each tank into their perspective bags, move the fish into the bag and add more water if there's room, making sure to leave space at the top for air. Tie the bags shut (leaving room for air), put the lid on the cooler and you're good to go. I move my 10 gallon tank 5 hours away like this and didn't lose a single fish. I realize it might be a bit more challenging with larger fish and/or a larger tank, but it worked for me so I thought I'd suggest it. Also, if need-be, you could probably use several bag/styrofoam container combos to separate everything from the 50 g into.
When you get to your destination, take some water out of the bags and put back in the tanks. Move the fish and add the rest of the water.