Freshly born guppy fry need to be raised separately. Because the space of the fish tank is limited, the mother fish who has just given birth to small fish will feel serious depression, and the body of the newly born small fish is relatively thin, so it may be attacked and swallowed by the mother fish. Therefore, fry and big fish must be kept separately.
1. In the case of feeding enough feed, small fish will grow rapidly, about 30 days can distinguish the sex, at this time can live with large fish. When the body of the fry grows to one centimeter, it will become very flexible and not easy to be swallowed by the big fish. When it grows to two thirds of the size of the big fish, it will be safe to live with the big fish.
2. The fry itself is transparent, can not see its own color, until half a month later can see the color of the fry itself, the body width of the fry has been wider than the mouth of the big fish. In this case, the fry can be raised with the big fish.
3. When the fry can be identified by sex, they can be raised with the big fish. Because this time the small fry has grown very big, the big fish has been unable to swallow them, the small fry can be fed together with the big fish.