Well...after all the fighting and lack of breeding that my Salvinis gone through, everyone told me to get some Dither fish, but I really don't want to get anymore fish. So...it's been HOT, which means the water has been in the mid to high 70's. I'd figured I the Koi and Minnows can act as dithers. Of course, I'll be bringing them in by fall, but do you guys see any problems that may come about?