do you know the origin of this fish ?
As you are in Europe, it could be Paratilapia
sp. Andapa : body shape, large spots and yellowish margin on the dorsal fin seems to match with this species.http://madagroup.francecichlid.com/articles.php?lng=en&pg=81
Identification of Paratilapia
is often difficult, as different species were mixed years ago. If you know where your fish is from, it will help a lot.Paratilapia bleekeri
from surroundings of Antananarivo is presumed extinct, but maybe some populations still exist in the wild.
, sold by Old World Exotic Fish as "Paratilapia bleekeri Maralambo" (Marolambo, Nosilovo River) may correspond to this species.