my female bp has developed a small nunchal hump, it is clearly swollen and has lost color in the area where a nunchal hump would develop in other cichlids, but i thought only males developed these humps?
fishdance;1370537; said:Its not unusual for females to develop nuchal hump on many cichlid species. Especially if there is no male present. Nuchal hump size is presumed to be a show of heirarchial position and is usually related to strength, dominance, defence or breeding displays. On some species it is affected by hormones but on other species it can be water filled tissue and change size/shape rapidly. Humans may actively select for this trait when breeding and obviously the Blood Parrot is intensively bred.
Why dont you observe the fish and post your thoughts why it has the hump?
I am more curious about allocating a scientific name for the Blood Parrot. The strain sems to have been fixed to the point of getting standard characteristics now.