pretty long thread so i am not going to read it all, but my two cents..
i have always started fighting cyano with a 3 day blackout ... i find this to be far more effective than anything else. run your carbon etc like others have suggested... also have you considered more flow and and lowering your photo period?... sorry if someone has already mentioned this.
GOOD LUCK i hate this crap... had it all thie time before swithching to RODI water.
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72 Gallon Bowfront Reef.. Hardware:2x250w Luminex Elite HQI Reflectors (Phoenix Hexarc Bulbs), Galaxy 2x250w Electronic ballast, Euroreef 130 Skimmer, Sedra KSP 7000 Retern... Live Stock: Pair of Hawaiian Flame Wrasse, Leopard Wrasse, Pink Streaked Wrasse, Pair True Percula Clowns, Potters Angel, African Flameback Angel, Orange Fin Tomini Tang, Yellow Assessor, Tailspot Blenny, Purple Firefish..
45 G FW Asain Barb Community tank.
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