10-20-2011, 08:14 AM
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What is also interesting here is our perception of algae. Aside from the negative aesthetics of glass and decor, and the potential negative affect on plants, algae can be a good aid in water purification. Many refugiums encourage algae growth to further purify the water.
If after reducing the light and/or nutrients, if the algae problem persists, perhaps an inexpensive submersible UV sterilizer may be the answer??? (which may also have additional benefits).
Disclaimer: I don't profess to be an expert on the subject as like most all of us, I'm still learning too - I've just been intrigued lately by sump filter setups and discovered that although wet/dry is still very popular, refugiums with [deep] sand beds, plants and sometimes algae are also very popular. Algae in the refugium helps keep it out of the main tank as it purifies water by 'banking' negative elements.