Start reducing 3-5 days after ALL spots are gone. You can do smallish water changes with SLIGHTLY cooler water as you lower the temp like 1 degree a day by turning down your heater. I keep my clowns with angels and they like a warmer temp so their tank is at 81F. If I wanted the angels to breed I'd up it to 82F, but I don't

I think clowns will tolerate lower temps too, but mine like the 80's. Someone else should probably chime in on this with temps.
And thanks for the thanks. Mean alot.
