Help, Algae!

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lemonsun1

Aquarium Advice Apprentice
Joined
Mar 16, 2004
Messages
30
Location
Los Angeles,CA
Hi all!
I have i big problem:
55gal, 2x90w VHO lightning

Now i have ugly algae all over the place.
It is not just looking horrible but it gets onto my corals, and they cant open any more.

Please help!
 
What kind of corals?? How old are the bulbs? If they are older than 6-9 months they need to be replaced. Also are u using RODI water?? If you have algae, u have nutrients (could be caused by your water source)
 
What does the algae look like? How long do you leave the lights on?
 
Sorry, i was away for a few days.....

My bulbs( and this lightning) are about 3 mo old, algae looks like short (about 1/4 inch) hair with dirty-brown color, my tank itself is about 9 mo old. I keep the light on for 13-14 hour a day.
tomorrow i'm gonna make another water tests, and will post the results here

Thank you guys!
 
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