Near;1862053; said:Yep, well I'll set him a 10g with some minows...If not the swordtail pair.
minnows are a type of carp. they will outgrow the tank. I'd get a 20 gallon and a couple of cons. they will live through almost anything, and the breeding would be a great learning experience.
unless I missed it, you never mentioned how old your little brother is.
also, if you're confident your brother will lose interest, and they'll become yours; you should probably take that into consideration. what would you want in a small tank of your own?