hi, recently bought this acan and for some reason it's going a dark brown colour around the edges.
Have checked all parameters and they're all fine.
acan is about 18 inches deep in water and light is about 10 inches above water. Currently have a maxspect Jump led light which is running about 60% intensity for about 7 hrs a a day.
Any ideas what this could be?

Have checked all parameters and they're all fine.
acan is about 18 inches deep in water and light is about 10 inches above water. Currently have a maxspect Jump led light which is running about 60% intensity for about 7 hrs a a day.
Any ideas what this could be?



