The Planted Tank Forum - View Single Post - Flourish Iron and clouding.
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Old 02-17-2013, 10:39 PM   #7
Darkblade48
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Quote:
Originally Posted by malloy85 View Post
.I'm not using a uv filter and have never seen the need to so please explain
UV light is not needed, but if it is used, it can break down the chelating agents that complex iron and prevent it from precipitating.

On that note, do you know what your phosphate levels are? It is plausible that if they are extremely high, that the iron could be forming an insoluble precipitate.
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