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Old 06-24-2008, 05:24 PM   #1
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Lighting/Algae Question

I have been searching through numerous articles on the war on algae. I have had a problem with algae for a while now. It seems like I take two steps forward and five back. So I ended up following the advice of the fantasy reef article and I think I have it under control for the most part but I have a question about my lighting. I have a 150w 14k Metal Halide light for a 30gal tank. DO you think that this light is to big for my tank. I have the HOB Viper HQI which also come with a 70 watt bulb. What would your suggestion be for lighting in my tank.

Thanks in advance

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Old 06-24-2008, 07:19 PM   #2
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I have another quick question. Right now my aquarium does not have a powerhead in it. The only circulation in the tank is being provided by a hang on back filter and a hang on back protein skimmer. Would not having enough flow in the tank create a better opportunity for algae to grow? Thanks for any advice.

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Old 06-24-2008, 07:22 PM   #3
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I dont think it`s too much. How long are they on during each day? Another problem is when they talk about lighting they are talking about older lighting. The older a bulb goes it`s spectrum will shift causing algea to feed off the different spectrum. If for example my VHO`s are supposed to be changed every 6-9 months and I wait and still have the same bulbs in there after 1 1/2 yrs then the bulbs are too old and have probably had the spectrum shifted. JMO. You keep using that FR formula and you`ll be OK on the nuisance algea.
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Old 06-25-2008, 02:27 PM   #4
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I would add couple of small power heads, maybe Koralia 1's placed to create a chaotic water flow.
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Old 06-28-2008, 05:55 PM   #5
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I ordered a Koralia one and should hopefully get it middle of next week. I definately think that I have a lack of water movement.
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Old 06-29-2008, 10:41 PM   #6
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Your lighting is fine for that tank, watch your water temp. What kind of corals in your tank? I would definately say you need more flow

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algae, light, lighting

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