Hi my house has a North East corner entrance facing East. The car parking comes in the south East corner. There is a back entrance to my house at the north west corner facing West. I hace the kitchen in the north west facing East. They say that I should leave the north wall free so that there is no obstacles on my path from North East entence to the north west entrance. Can I place the fish tank in the north wall about 10 feet away from my North East entrance?