Signs that your coral are not getting enough light

lil.guppy

Active Member
I have the T-5 Nova Extreme pro on my 46g and I got to thinking since I have had this tank up for a year my coral sure is growing really slow.... Even my purple and pink star polyps have only gained maybe 2'' around in a year.
My day lights are on for 8hours and my blues are on for 10hours
Should I extend my days to 10 hours?
What are some signs that your coral are not getting enough light?
 
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