Thank you all for your nice comments. Mr.Peters,... we shall see, I hope you are right.
Mike, they have moved inside to one of our tanks. It's 2500 gallons, gravity fed to a Nexus Eazy 300. Tank sits in front of a West facing 10' L x 5' H window for natural light - the tank itself has grow lights above but we are thinking of switching to MH. Won't be heating the water only the air, hope to keep them in the mid-low 70's over winter, will depend on the fuel bills. Oh, feed feed and feed some more
spoil them silly essentially.
Kind Regards,
Terri