SPS 911
been trying to introduce some sps frags into my 150W MH 34G tank
i have them on a rack mid way, waterflow is moderate yet i have noticed they are turning white and PE minimal with stringy substance shedding off the coral itself
my phosphate is 0 nitrate minimal (5-10) with elos test kit
dkh is around 8 tested with a hanna tester
What is causing my SPS to regress ??
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