CATDOLL : CATDOLL: Is it okay to keep multiple types of killifish in one tank? About 50 of them?

1. Is it okay to keep multiple types of killifish in one tank, about 50 of them?

You can raise them together. Killifish are suitable for similar temperatures. They are ovoviviparous and will lay small fish directly in the water. They all like weakly alkaline water and like to swim in the middle and upper layers. The number of 50 fish depends on how big your tank is. If it is too small, the density of 50 fish will be too high, and the fish will be uncomfortable living together as the space will be too crowded. It's best to raise peacocks alone because among killifish, the other fish are relatively aggressive except for peacocks. Overall, they are not too aggressive but may pose a threat to peacocks as they may bite their tails. If you don't raise peacocks, other killifish can be raised together.

2. Why does the head of wild mandarin fish rot and turn white when placed in the fish tank?

There are parasites, so the fish should be disinfected before putting them in. Natural water is running water, and there are other organisms that eat the parasites on the fish. There is no such ecosystem in the fish tank, so disinfection is required.

3. Can 3 sea bass, mandarin fish and flat fish be kept in 1 fish tank? ?

Same reproductive environment

4. Is there anyone who raises shad in fish tanks?

Migratory species cannot be kept in captivity.

5. Is it suitable to insert an oxygen tube into the fish tank for raising salamanders?

You can plug in oxygen or not, as long as the water is clean, because it breathes with its lungs. When it lacks oxygen, it will swim out of the water to breathe and then sink again.