Yeah, they were the original inhabitants 6 months ago after the initial cycle. I figured they'd do a good job of holding the bio-load for fish, which were added here and there due to budgeting concerns. Down to just these 4, they occupy the upper regions of the tank nicely, keeping the rock dwellers out and about pretty well. I'm working on a taller rock structure for the Brichardi, that'll bring them up further into the water column. I figure I'll keep em till they're big enough for my buddy's pond. They're... sniff... my friends now.