Good day Discus experts,

I've been having issues with recent hatch rates with my discus pair. I keep my tank temperature at 85/86 degrees Fahrenheit with a TDS around 50 and PH at 7.8. I do 75% water changes every other day and remove debris from the bottom of the tank daily. With all the reading I have done to date I believe the tank temperature is too high and should be around 82. What are your thoughts?