I'm sure those fish did great.But I'm not really following your logic here. You state that they don't need seasonal cooldowns, and then mention that they are kept in unheated tanks that experience exactly those sorts of cooldowns.
I'm agreeing with you that they benefit from the variation. Why state that they don't?
It's impossible to be completely correct or completely incorrect when you are on both sides of the fence at the same time.![]()