Male to Female ratio with dwarfs

[fish_face]

Hi everyone,

I'm hoping to get some dwarf cichlids soon and was wondering what the male to female ratio should be. Is it normally two females to every male or in pairs? I like cockatoo cichlids, agassazis cichlids and lemon cichlids (neolamprologus leleupi).

These are to be housed with a pair of angelfish, 2 rainbows and some catfish in 350 litre tank (75 imp. gal). I also have some lava rock to make them a large cave, will this be ok?

Thanks

Oh and by the way, are these all american cichlids?

 

[Seb R]

I have 1m and 1f, works for me but i hear 3:1 is good.

Sounds like it would be ok, never kept angels myself but as long as there is plenty of cover.