Can the roof be used as a rockery fish pond?

Yes, but the villa rockery fish pond should not face north. The gate faces north, which is unlucky. This is Xuanwu Gate. Villa rockery fish pond also means defeat in feng shui. As long as the door does not open to the dark side (Xuanwu Gate), there will be no other problems. The feng shui of villa rockery fish pond emphasizes that it is best to feel. Hope to adopt, thank you!