Duncan,
I love your pond . I am putting together an 18' diameter above ground pool that I hope will be similar to your pond, only smaller!! Can you put up another graph of the outside temperature and the pond temperature. It is a little warmer here in Florida and I should be able to maintain at least as high a temperature as you do.
How do you like the red tail cats?
Just went through the whole thread and its amazing
I have an 35m3 pond too with some kois, and i would like to warm the water (not an big deal with my job)
But with 35m3 i don't know how many fish i can put in it, i love arrowana and Sa cichlid, at the moment there is only 6 big kois and a shoal of corydoras paleatus who leave near the rock, some notropis chrosomus and lutrensis who i will put on other pond
Do you think that i could put RTC whith big SA Cichlid ?, i don't want RTC to eat them ^^
My rtc's don't seem to go after the other fish. I think if there is enough space and they are fed well the risk of predation is small, not zero though. The rtc/tsn is a different story, he's always trying to sneak up on the smaller fish.