Ƙwallon ma'adini mai launi biyar na Nano, tare da tsari mara kyau na ciki, na iya samar da yanayi maras nauyi, noma kwayoyin anaerobic, da samar da mafi kyawun wuri don haifuwa.Launuka biyar, amfani daban-daban, mafi kyawun tasiri lokacin amfani da su tare.