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![]() My bulbs are at least 12 months old, if not more. I don't have a phosphate test kit, so no....I haven't measured those.
But I am running Zeovit and my TDS out of the RO/DI is 0-3 on any given day. I regularly (weekly) flush the RO membrane as well. The old bulbs are ATI and Geisemann, so they're high quality...but definitely old. Edit: I should note that 3 bulbs are newer (1-3 months) and they are Korallen Zucht Fiji Purple and Coral Light (x2).
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~Drew 10G Nano * 10G Sump * Deltec MCE 600 Skimmer * JBL Viper 150w MH * Zeovit * Vortech MP40W Millions long for immortality who do not know what to do with themselves on a rainy Sunday afternoon. ~S. Ertz ![]() Last edited by Der_Iron_Chef; 07-13-2008 at 05:51 PM. |