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Old 11-18-2007, 07:01 PM
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stock canister filters are nitrate factories. for marine use, you would need to take out all the bioballs and replace it with live rock rubble. then it works like a charm. if you leave in the bioballs you would need to clean it every couple of months or else battle with nitrates.
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Old 11-18-2007, 07:06 PM
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no no window.. it's got 30lbs of rock but i'm thinking maybe it's because the rocks are crap now or something.. I mean they were wonderful in my 44gallon. I even had pods etc. Then I moved everything over to a 92 that i cycled and and then I moved.
It got left at the house for awhile before i moved it to this house (just down the street)
so it didn't get cleaned as often as it should but ever since i moved it to this house I've nothing but problems

it's got RO/DI water but I'm wondering if the rocks aren't filtering or something now or i shouldn't have reused the sand ?
would that cause this problem ?

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Old 11-18-2007, 07:22 PM
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What values are you getting from your testkits? Where are you getting your RO/DI from?

To me it sounds like an algeal bloom of some sort. From what you've posted you've taken the correct first steps. In the phosban reactor, what type of GFO are you using?
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Old 11-18-2007, 07:44 PM
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What's GFO ?

the RO/DI water comes from my filter under my sink.

ammonia - 0
nitirite - 0
nitrate -0
ph - 8.2
alk 5mg/l

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Old 11-18-2007, 10:16 PM
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GFO - granulated ferious oxide, which is also phosban, phoslock, etc.

I would recommend keeping with the water changes, add in some new carbon, and be very careful about overfeeding. You can also trying blacking out your tank for a day or two. Cover the tank with a blanket or towels to ensure no light enters.

What do you have running in your refugium?
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Old 11-18-2007, 10:53 PM
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there's cheato in the refugium. About the size of a softball.. maybe a little more.
I added some rock to it aswell last week.

I'm using phosban at the moment but i used to have seachem's version.. forgot the name.
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Old 11-18-2007, 11:07 PM
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OK so if i understand correctly you have Green water. Is there any other algea in the tank?
Sorry but I have more questions
What type of lighting?
What K are the bulbs?
How old are the bulbs?

If you have a phosphate test kit what is it reading
How old are you current test kits?

Algea eats phosphates and nitrates. If your live rock was garbage it would not convert ammonia to Nitrite and nitrite to Nitrate. The end of the nitrogen cycle is Nitrate. You rock is not expected to convert Nirtate to anything. Ammonia and Nitrites are toxic to fish. So I would say your rock is doing it's job.
Odds are your Nitrates are not 0 and I'm going to speculate your Phosphates are through the roof.

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