1. Because there is not enough oxygen in the basement, pumping oxygen costs electricity and increases the cost.
2. Edible fish are generally crucian carp and carp, which belong to cold water fish in China and need light. If the lights are turned on for a long time, the electricity bill is not small money.
3. Rebuilding130m2 pool is also one of the costs.
4. These fish breed slowly and have insufficient experience in eating fish. If there is no space, don't keep them, and they are easy to lose. We fish lovers are tired and troublesome to raise so many.
It is suggested that several small tanks can be made first to raise tropical fish (small fish). It's summer, there is no need for heating rods, and it's also the best season for tropical fish sales.
Such as peacocks, zebras, mice, lights, dragons, kissing, vests, sheep, sharks and so on. It is the best variety. Reproduction is also fast.
But now the competition in the fish market is very fierce. For the purchase channels and breeding methods, brothers should practice for one year first. Because the biggest difficulty in selling fish is losing money.
The breeding method is really not clear in one or two sentences. Among them, there are many experiences.