Malawi cichlid ID - Zoo Antwerpen aquarium

I think this is a male Protomelas taeniolatus, sometimes called the red empress (even when it's a male).

It's not a Copadichromis borleyi male?

@Kakapo That was my first thought too, but the ventral fins are much too short (unless they have been nibbled of course).

@gentle lemur @Kakapo

I have now uploaded a second, different image of this fish, just maybe on the off-chance this could help you guys?

Malawi cichlid ID - Zoo Antwerpen aquarium (2) | ZooChat

To me it looks like the fish has its ventral finds folded in this image, and less folded in the second one.

@KevinB @Kakapo Having looked at this photo again and compared it with the second photo, I think my second thoughts were wrong and so it is a borleyi (with nibbled ventrals). The deciding factor was the relatively plain blue caudal fin, which is rather different from the red empress which has a blue fin with some red lines. I'm sorry I got it wrong before
Incidentally it is easy to tell the difference if there are females in the same tank. P taeniolatus females (and immature males) are silver with a strong black line and fainter black bars, while C borleyi females have much plainer silvery bodies but characteristic orange fins.

@gentle lemur Thank you. I believe most if not all of the fish in the Malawi cichlid tank at Antwerp are males though.