Yeah I have 4 kelberi 3 temensis and a columbian orino in my other 180g. These are all 5-6". I just bought a really nice royal pleco for this tank too.
Still having trouble trying to fatten up these kelberi. One is on pellets now so he's okay the other two are doing okay on bloodworm. One of them is pretty skinny though. He only eats if he thinks it's live, I drop white bait in the filter output and he takes it that way. Very tricky though, I will just have to persevere.