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Old 03-01-2007, 07:34 PM   #1
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whats wrong with my tank?

Hi, I have had my tank going for 10 weeks. Its fully cycled and I have fish. It is a 54 gallon corner tank. Right now I have 2 damsels., 2 clowns and a blenny. . My problem is my sand. It is covered in brown stuff. I dont even know if its algae. It almost seems like it has bubbles in it. M



My nitrites, ammonia, and nitrate are all good.Would anyone out there know whats wrong or how I get rid of it.
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Old 03-01-2007, 07:42 PM   #2
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You dont have a clean up crew?
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Old 03-01-2007, 09:07 PM   #3
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If it`s brown then it could be this

http://www.fantasyreef.com/showthread.php?t=1843

If it has a reddish tint to it it could be

http://www.fantasyreef.com/showthread.php?t=690

If it did not have air bubbles I would say it was diatoms.
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Old 03-02-2007, 09:25 AM   #4
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I agree, bubbles could possibly mean cyano. Can you get a pic?
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Old 03-02-2007, 12:18 PM   #5
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Diatoms can also grow bubbles too, though it isn't as common. If it's light brown and sorta powdery, I'd say diatoms. Thicker and more slimy, I'd guess cyano.
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Old 03-03-2007, 10:16 AM   #6
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NO3 and PO4 levels?
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Old 03-04-2007, 05:57 PM   #7
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I think it is cyano

I think from reading some articles that it is cyano. not sure what to do. one fish store told me to just stir the sand but it doesnt seem to help. another tried to sell me something to dose my tank, but i didnt cuz i wasnt sure. it seems kinda of hairy and it has bubbles
any idea if it is cyano what i can do? also its only on my sand, nowhere else. I dont have a camera, cant get a pic.
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Old 03-04-2007, 06:17 PM   #8
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Manually removing as much as you can is a good palce to start. Decreasing the amount of time your lights are on, or keeping them off for a day or two will help reduce the amount of algae present. Since this is a new tank, it may just need some time to mature. Your bio-load is pretty high for a younger tank. The algae blooms may go away with time. For now using RO/DI water, not overfeeding or overstocking, and keeping NO3 and PO4 down will prevent/limit future out breaks. Running a PO4 reducer will help as well. They are a little costly, but well worth it. The media, like Rowaphos for example, last fairly long(months) and works great. I would highly recommmend using it, especially in a new tank.
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Old 03-05-2007, 01:04 AM   #9
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The media, like Rowaphos for example, last fairly long(months) and works great. I would highly recommmend using it, especially in a new tank.
Thumbs up on the RowsPhos sponges. I had a tad bit of Phosphates in my tank when I started. I bought a package of the square RowaPhos sponges (like these here... http://www.premiumaquatics.com/Merch...Category_Code=
)

and put them in my HOB canister. Problem solved. I haven't had to run them again since, but they worked like a champ.

I didn't notice any response about your nitrate or phosphate levels though. If you haven't tested your levels, buy test kits before you do anything and figure out what's in your water. If your nitrate and phosphate levels are high, until you lower them both you're fighting an uphill battle.
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Old 03-05-2007, 07:47 PM   #10
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I bought phosban and a nylon bag to add to a HOB filter and it lowered my phos great. If possible get a test kit for phos and test. Test your top off water source as well. A healthy cleanup crew can quickly assist in getting things cleaned up. (snails, bluelegged hermits, scarlet hermits, etc.) They are fun to watch as well.
Finding the source of your phosphates with testing and eliminating it will ultimately solve your problem.
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