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Old 03-27-2012, 03:21 PM   #1
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Green hair algae problem

Hi guys,
I am new to the marine world, I have purchased a river reef 94l aquarium, which has now been set up for 3months.
Everything seemed to be going well until recently, when a green hair-like algae has appeared on the live rock, and in areas on the tank.
I feed the tank once daily, with frozen brine shrimp.
The integrated lighting has settings of day and night, the lights are left on throughout the day, and a blue uv light for the evenings.
I do weekly 20% water changes, and the tank currently only contains a cleaner shrimp, a royal grammar and a blue sponge coral. (along with 9kg of live rock).

Does anybody have any advice on what I can do to tackle the problem?

Thanks!
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Old 03-27-2012, 03:31 PM   #2
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right off the bat I'd say your lights are on to long also you could try cutting down on the feedings to every other day
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Old 03-27-2012, 03:45 PM   #3
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Thanks for the advice, how long do u recommend I should put the lights on for? Also how would you go about removing the algae from the rocks?
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Old 03-27-2012, 03:48 PM   #4
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What kind of light is this? By blue UV light, do you mean actinic lights, or a blue led moonlight? If it's the blue actinic lighting, that needs to stay off at night. Lights should be on for 7-8 hours a day. Also, tone down your feedings to every other day or every three days.
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Old 03-27-2012, 03:49 PM   #5
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I'd say 8 to 10 should be plenty. As for the rock you could try suctioning it off when you do water changes or if its not a pain I use to mix a bucket of saltwater and scrub them off with a brush in the water
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Old 03-27-2012, 04:13 PM   #6
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It's the blue led lights. I'll try leaving the lights off a few hours a day and see what happens.

I'll give it a go next time I do the water change, but I may have to hand scrub each of them.

Thanks for all your help.
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Old 03-27-2012, 04:19 PM   #7
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FantasyReef Databases-Viewing item "10 Step Plan for Nuisance Algae Control"

This is an excellent checklist.
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