Best option for 2 species

[danbb]

What is the best option for keeping 2 species (one pair or 1m+2f from each) into a 200 l tank, between cacatuoides, agassizi and macmasteri?
If the most aggressive are agassizi, the best option will be cacatuoides with macmasteri?
Thanks.

 

[Mike Wise]

Actually, most experienced hobbyists find males of A. macmasteri the more aggressive, territorially, of the group. Any 2 would work together - if - the tank is properly decorated to provide adequate territories for each fish. This means avoid line-of-sight between territories as much as possible.

 

[danbb]

Thank you Mike.