My Brain

I have a open brain coral,it's a beautiful blue
and green color.I've had it for about 6 months
now,and alway's was doin great,this morning i
seen where the color is flaking off of it,so
far it's just at the base of it.Tested my water
and nothin is out of wack.ANY IDEA'S?
 
I have a 55 gallon reef,for lighting i have a
smart light 2 65 watt lights,and i use my strip
light,that came with the tank,i have a 50/50
light bulb in it.I know this is not alot of
light,but i try to only get corals,that will
be ok with what i got.I have had it clear at the top,for the 6 months,that i've had it.It as a
good flow,goin past it.If it's dying is it just
a slow death,or what.It's been great until now.
Also,are the pieces that are coming off goin
to hurt everything else?THANK-YOU
 
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