How soon are you moving into your next house? In the mean time try to do large water changes to keep the water quality decent. If space isn't an issue you could buy a rubbermaid stock pond. My local menards has a 100g one for only $60.00s. Here is a thread with the dimensions they come in. http://www.monsterfishkeepers.com/forums/showthread.php?t=146037&highlight=rubbermaid