I would say most of those are Showa with the odd Kohaku-ish looking fish thrown in, no offence ment although it is quite hard to tell in the pics. I wouldnt put any money down on there being a show winning fish amongst them but it will be interesting to see them developing, you may end up having to cull as you go too otherwise you will end up with dozens of worthless fish on your hands no one wants, but good luck rearing them keep us posted on their development and maybe the members can advise you on which to keep to grow on when they develop a bit more | 
