First off, happy new years! Secondly, I've got some cash to spend on some fish right now. I've decided to buy two schools of tetra's. My local petsmart has cardinals on sale for 1$, so im going to buy 10. My question is, what would be a good choice for a second type. I believe I have a good solid knowledge of most tetras, but I have no actual experience with any except neons and buenos aires, which I would not like to have again. Any one have any resonable ideas, things like Congo tetras won't work because they are a little too pricy, but any reasonably priced tetras would be great. Thanks! Oh and btw they'd go in a 55.