Thanks JK & Cookie. I'm working towards having matching 120s (60") of Uarus. One for each type. If I could only have one tank and one fish, ferns win hands down. They have great personality. I gave them kale one day rather than their usual spinach. It was worse than changing food for a spoiled cat. They nosed it. Took a couple nips, then formed a protest line at the front of the tank. They ate it, but it took over an hour. Giving them spinach is like dropping beef heart into a tank of exodons. I often refer to them as my herd of aquatic goats.