02-27-2009, 02:03 PM
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Tiger barbs might work with rams, but only in a much larger tank. I'd say 20g minimum for tiger barbs as they really need a lot of swimming room. A school of smaller tetras should work just fine, though. There are plenty of tetras that would work: neons, cardinals, ember flame, black neons, glowlights, lemons, pristella, bloodfins, etc etc. Cories would also work, but the ram will spend most of its time near the bottom so you'd be a little cramped for space and wouldn't have much going on in the mid to upper regions of the tank.