What should I add in 20g tank? Killifish???

[Barry Tetra]

So recently my goldfish died after the vacation due to fungus or “white mucus”

Can anyone suggest what should I put in the tank? as there are nothing in that tank rightnow
Questions

1. How many Nothobranchius rachovii can I add?
2. How do I hatch the egg? My LFS sold 30 killifish eggs for a really cheap price
3. Can I add kuhli loaches and corydoras along with killifish?
4. Is it true that eggs can be hatch in 1 - 48 hours?

@Colin_T @Back in the fold

 

[PheonixKingZ]

Is it a 20g long, or a 20g high tank?

 

[Barry Tetra]

Is it a 20g long, or a 20g high tank?

High tank

 

[Barry Tetra]

@Colin_T

 

[PheonixKingZ]

You should also be asking @Byron.

 

[Byron]

Do not mix cories and loaches. Kuhlii are not quite the same problem as would be any of the "Botia" type loaches, but still not a good idea. Cories need a good sized group, and more of them rather than fewer to make room for other substrate fish is not a good idea.