Pelvicachromis pulcher (common name = kribensis)
The above kribs have paired up and spawned about 10 minutes after this picture was taken
The two pictures above are females and the two pictures below are males
Pelvicachromis pulcher are cave spawning, egg laying, pair bonders. As you can see, the female is smaller with a large rounded belly (especially when she is ripe). The ripe female develops the purple colored belly. The male is longer and more slender. Although these are west African riverine cichlids accustomed to soft acidic water, they tolerate harder more alcoline water conditions quite well. These are very common cichlids that most hobbyists have kept at one time or another. They grow to a length of only about 4 inches (10 cm). I believe that my kribs are the yellow morph from Nigeria.
I got to watch the male and female take turns guarding the fry for quite some time before they retreated to their cave. Note the tiny little brown wigglers on top of the rocks above.
Next riverine = Pelvicachromis taeniatus Nyete' Back