/fishweb.ifas.ufl.edu/AquaticAnimalH...erAngelfish.JPG
i have a rekord 120 upstairs, and a 40L next to it so thats like the same weight. and next to that is an empty 240 so that must still way alot when its empty.thats what i think but my mum thinks different, did you have your tanks upstairs? as im really worried that a single 180 may come throught the roof and i dont want that to happen