What size tank?

[sparkyned]

okay, so im looking at getting a new tank. what size tank do u reccomened for:
2 blue acara
2 convicts
1 striped raphael
2 buffalo head's

i already own this fish all are small apart from the raphael which is abou 4" but i guess this is tiny to u guys so yea, would like to know what size tank u recomened and if you think my stock is good/bad together.
thanks

 

[Cichlaholics Anonymous]

that's quite a few pairs, might need a pretty large tank even with light bioload

 

[sparkyned]

that's quite a few pairs, might need a pretty large tank even with light bioload

what kinda size is quite large?