How to choose the date of digging fish ponds and geomantic omen

Some people just don't like showing off. There is a strict method to choose a good day when digging a fish pond: otters are most forbidden to steal fish in a fish pond, so it is advisable to sit in the pond when digging, and the tengu will not eat the day, and the hidden gold will hide the day, and the tail fire tiger, white water leopard, Kuimu wolf and Lou Jin dog will be selected. You can take down otters in four nights. The drainage hole should be in the square. Another option is to let the fish go to Tangjiye on a prosperous auspicious day.