07-14-2008, 02:39 PM
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5-6 would be a good school size for the tiger barbs. I have 6 tiger barbs in a 20 myself. Definitely nix the pictus. Most pictus I've seen for sale in stores are already big enough to eat neons for sure. Unlike many catfish, pictus are active mid-level swimmers and are predatory, so they're not really a good choice if you're looking for bottom-level fish. Cories would be a better choice. A small species of pleco, like a bushynose or clown pleco, would also work. You need driftwood in order to keep a clown pleco healthy, though.