Fish FREAK OUT when i shut off the lights?

at night when I shut off my tanks day lights and all I have on is the moonlights it seems the very instant I shut the lights off my purple firefish spazzes out makes 1-2 really fast laps around the tank breaches the water then hides for the night and my perc starts freaking out and like spazming in its anemone just starts convulsing is this just luck of the draw I have weird fish or what ive checked my electrical there is no voltage making it into the water but what could cause this my wrasse and bicolor do just fine and swimm like normal to their perspective beds but the other to spazz out?????

What type of light set up are you running? Is it possible to shut down your lights in stages rather than everything off at one time? If you think about a fishes natural environment, lights out is a slow sunset not instant darkness. While your fish may become accustomed to your current lighting schedule over time, it would be best to replicate something more like a natural sunset (and sunrise for that matter).

DLindquist wrote: What type of light set up are you running? Is it possible to shut down your lights in stages rather than everything off at one time? If you think about a fishes natural environment, lights out is a slow sunset not instant darkness. While your fish may become accustomed to your current lighting schedule over time, it would be best to replicate something more like a natural sunset (and sunrise for that matter).

Maybe read them a happy bedtime story?

Sounds like another good Reefkeeping Tip

I do turn my actinic lights on first then an hour later the day lights they go on the same time every day and off the same time every night I turn them off day lights first then actinic second I have the days on for 10 hours a day and the actinic for 12 on at 0900 of at 2100

They are 15k day light and 8k actinics with an LED moonlight