No wonder! It's man made, so I'm directing can help the fish there. Wasn't calling you a fibber. I've never heard of it though lived here all m 58 years. (yeah I'm old as dirt. Lol)There is park in Huntsville that's full of koi fish. Not natural rivers, man made lakes.
What about a hillstream loche (less than 3") with goldfish? They've been in tank with heater (didn't know that they don't need it) @ 77.9--78.8F.
I know. . .but they're colorful, vibrant, active & healthy. I didn't think it was good to change their entire existence up til now by changing water temp too.
Y'all will weigh in if you think I'm all out of bounds. Gonna repeat testing after lunchtime. May the angels fly with us all.