1, fish problem: having a fetal point only means that the mother fish is pregnant, and there are several points before giving birth. A. the fish mouth is upturned. B, some female fish swim up and down on one side of the tank, and some will quietly hide in the corner. C, tire spots turn black (except red-eyed fish), and PP (buttocks) will become square. Almost all of the above points are sometimes, and the fish has been raining for two or three days. (mainly relying on long-term experience in fish farming)

2. Raising small fish: Before the mother fish is born, it must be put in a separate tank, and the size of the tank is preferably 35*25*35. It is best to have a cat litter box (which is usually sold in fish markets, but you can also make it yourself), because viviparous fish generally eat young fish (some mother fish don't eat it, but a few), and take out the mother fish and put it in a separate tank three days after delivery. (pay attention to the state of the mother fish during the period. If she is ill, after treatment, she will be mixed and cultivated. )

3. The male red arrow fish bought by the landlord may be too small and underdeveloped. The second possibility is that the fish has just arrived at your home and needs to work hard to adapt to the new environment. Betta fish can't be mixed with those kinds of fish, so it won't kill other fish, but it is likely to bite the tail fin of other fish, making it lose its ornamental value.

4. I haven't raised any other viviparous fish, so the landlord will look for it again.

All of the above are my personal fish farming experience, which I hope will be useful to the landlord.