They are actually full grown now, or what I think is full grown. It wont drop at all, in fact that was probably the low. They did fine last year.Is that typical for your area? Will that temp last for awhile?
Are you planning on leaving these guys out all winter?
My tankful of G.rhabdotus fry is in my basement now, water temp around 65F and it will be down another 5 degrees or so pretty soon. As nice as it is not to use a heater...it's kind of a disappointment seeing how relatively slowly they are growing due to the decreased metabolism, compared to typical "tropical" temps.