I too have LED's. My in tank circulation is from Korolias and I don't think that they add that much heat. But my cheap Jebo return and
skimmer pumps (gotta replace them) run
hot. We have our thermostat set at 65 and my 200 W heater easily keeps my tank at 79. In the summer we keep the thermostat at 75 and my tank runs at 80-81. Since I got my Solaris I've not used my chiller.
