Blue acrapora turning brown.

Crush Coral

New member
So my blue acrapora is turning brown. alkaline 8, ca 320, mag 1450. can too high of nutrients cause this? i have been just running a rector with carbon and phosban and no simmer for about 5 months now. any ideas?
 
Your calcium is far too low imo, bring it up to 400-420 asap and see how things go for a few weeks. Do you have test results for nitrates and phos levels, battling any algae issues. Can be a great deal of things causing the problem so it might take a while to narrow it down hence the questions lol.
 
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