Hi..

Anyway the main fish I want to get is a breeding pair of
Blue Acaras.

I've kept Aequidens pulcher (Acara latifrons) in the 70s in
a 65g tank.

I was wondering if the tank would be big
enough.

No. Do you like Laetacara curviceps?

breeding pair of Kribensis

Pelvicachromis pulcher? No.

or a combination of these

No! :-)

Also wondering what kind of filter and substrate would be
best for the blue acaras.

Canister filter, sand, life plants.

--
cu
Marco