I transferred my 8 large PKS from the RAS back into the mini pond, the biggest ones were 9 inches so that's only a 1/2" gain from last year so I think they have reached their max length but they are plenty fat.
Soon I will put their 10 largest offspring from last year in a 100 gal. tank outside and hopefully they will spawn. I'll keep selectively breeding them and see what happens.
Here's one of the bigger ones.
