Originally Posted by Surfer
I'm confused, why is everyone's pictus so different than those that I have? It's the same fish but the patterning is completely different!
Pimelodus is actually the genus name with a few different species. All of them have a pretty similar body shape. The particular species you have is actually pictus. However, in the trade some time ago they started using the species name of your fish to describe all fish in the Pimelodus genus. Hence the "four-line" pictus and the "spotted" pictus are actually both Pimelodus and only the "spotted" is truly Pimelodus pictus.