Simply what that title says. Why? This just started happening the past week. My display tank is on my first floor. My sump is in the basement. I have two EB8s for the tank on the first floor that each has my LEDs and T5s plugged into. I have two EB8s in the basement 12 feet away. My PM2 is connected to one of those with the salinity and temp probe in the sump. My condx reading has been dropping drastically on a daily bases. I finally got around pin pointing the event with when my white led channel turns on. Why?