Wild Kelberi Peacock Bass (Cichla Kelberi) 2.5 to 3 inches


The Kelberi peacock bass is the most suitable peacock bass species for an aquarium, owing to their decent full-grown size of 12” on average. 

Some specimens can grow up to the maximum size of around 18 inches but more commonly only reach about 10” to 12” in length within the aquarium environment. 

Even the most giant Kelberi peacock Bass is quite reasonable in size compared to many other species of Peacock Bass, which generally reach lengths upwards of 28 inches or more.

As always, there are no guarantees that your fish will reach the max size. This will depend on several factors, including proper nutrition, water quality, and genetics.