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Old 05-17-2006, 08:33 PM   #1
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Algae on Sand, only one side

Hi there,

How bad does this algae problem look? Tank is kept up with RO/DI water changes and has been up over half a year now. Over the past couple months this side of the tank has gotten worse. I skimmed a bunch off the surface of the sandbed, but it comes right back.

Nitrites = 0, Ammonia = 0, Nitrates =0. We do a 5 gallon water change every week. Lighting is on a 8 Hour Actnic / 6 hour Daylight schedule, with Moonlights on the other 16 hours of the day.

We have 2 clown fish, 2 Emerald Crabs, Peppermint Shrimp, and a bunch of Nassarius, Astraea, and Hermit crabs. Feed them a couple times a week with Ocean Nutrition frozen food, and supplement inbetween with Ocean Nutrition Flakes. They eat all the flakes that hit the surface, but some of the frozen food makes it's way to the rocks / bottom.

Any ideas on what we can try to clear up this problem? Can't stand a dirty tank.
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Old 05-17-2006, 08:44 PM   #2
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How often are you feeding? Need to feed every other day. Need to get some current to that area. Maybe a power head. Try to syphon that area and blow current on that area. But just remember that there is a fuel source there somewhere
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Old 05-17-2006, 09:00 PM   #3
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I agree. I see 2 powerheads pointing toward the center of the tank. Try situating one in the front left pointing to the right, and one in the back right pointing to the left (I hope that makes sense)and down slightly. This way you get a circulating current that hits the sandbed.
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Old 05-17-2006, 10:24 PM   #4
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i had a vary similer prooblem in my tank last month all i did was place a power head close to the bottom in that area and it cleard up in a week or 2
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Old 05-17-2006, 11:04 PM   #5
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Thanks for the replies. I will try changing up the Powerheads to create the circulating current. Would it be too much to have a 3rd powerhead that is at the bottom of the tank? This is very interesting, glad to hear proper placement has cleared up the problem you had Ianrich, gives me hope.

I am guilty of feeding them flakes every day. I just feed a little bit at a time, they eat that stuff really fast and our always hungry. Is that a algae source even though they eat it all? I'm always afraid that they dont' get enough to eat from the frozen food every other day feeding. Since a lot of it sinks pretty fast or gets sucked into the poweheads.

Thanks again!
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Old 05-17-2006, 11:15 PM   #6
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Flakes are known for releasing more PO4 into the tank then other form of food. just an FYI
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Old 05-17-2006, 11:16 PM   #7
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I`ve been feeding mine every other day for eight years now. They will be OK
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Old 05-18-2006, 01:44 AM   #8
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My PHD scientist/biologist (professor emeritus and dean) father in law says fish, especially marine fish can go for a long time without eating, up to several weeks. Well documented in his student marine fish and invert labs. I wouldn't worry about every other day feedings or even going on vacation for a week, as long as the the water is good they will survive.

As far as the algae problem on the substate, I would do as the others have sugessted and change the direction of the powerhead flow or add another one. It can't hurt.
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Old 05-18-2006, 07:19 PM   #9
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How long have you had your bulbs for? Just wondering.....
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Old 05-18-2006, 08:18 PM   #10
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I have had the bulbs for a little over 4 months now.

I redirected my two powerheads and will post back after some time as to the results. I am also cutting out the flakes for awhile and feeding them the frozen food (soaked in Zoecon and Garlic) every other day. Will see what happens!
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