My wife is an acan nut !!! When I decided to change her tank over to LED's we saw first loss of color due to the strength of LED's,after some adjustments the color returned very nicely. After several months they then started to morph colors ! We have found from trial and error that they need to be in shaded areas when they start to change. We have also had good results with how it's mounted. If you tilt them slightly to avoid direct light they keep color well. She even now likes to get common ones and purposely make them morph to see what happens. Good luck