Requirements ... The zodiac belongs to the ox and the five elements belong to the fire. What goldfish is good and how many are good?

It's really troublesome for you to answer this question, because you have to correct basic concepts, which are not as easy to accept as a blank sheet of paper:

1, Niulong five elements belong to soil, not fire.

2. You said that keeping goldfish is generally to promote wealth through geomantic omen. I don't know what your purpose is. If it is to urge money, it should be from the perspective of feng shui. What is the direct relationship with the zodiac? Don't be surprised that the zodiac doesn't even have much to do with the horoscope.

3. Seeing you ask "Where should I put the fish tank" is really a feng shui problem. Feng Shui requires wealth or prosperity, which involves the orientation of your residence. There are 24 directions in a 360-degree week, and the fortune is different, so it is temporarily unknown. There is a fast food geomantic theory that "the financial position is diagonally opposite the entrance". I suggest you don't believe it It's best not to do things that may go wrong.

4. Keeping goldfish (or any other fish) in geomantic omen to make money, in fact, what is mainly needed is the so-called slow flowing water, not the fish itself (of course, the fish and its ornamental value are another matter), so the color and quantity are not that important. There is a lot of eloquent attention outside, but it is actually just the result of mystifying good people intentionally or unintentionally in recent years. It's time to talk.