Red Finned Congos

[lordofthesea]

both my congo tetras have developped a red patch on their dorsal fins. they've been displaying at each other and erecting their fins lots, and their colours are really bright. are they just in breeding condition and squaring up to each other, or should i be worried?

 

[Inchworm]

Hi lordofthesea

Since you aren't getting a response in Tropical Discussion, I'll move your thread to Cyprinids, Characins and Atherinids. Since I have posted on it, it will go to the top of that list.