I think you should go for it too. You need something small to get them to metamorphosis in though, not a huge tank cause that with green water and rotifers is way too hard. At 7 months many will be about a lightweigt inch if you're lucky. Including all that tail fin. Florida aqua farms has rotifer starters. $10 or $12 plus $35 shipping. Then you need a green water culture going to start them multiplying. You need a set up for both.