ok i give up.. i have to start over..

[asherah]

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

asherah

[michika]

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?

[asherah]

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.

[Jason McK]

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.

J

[asherah]

the bulbs are old.. I bought new bulbs but ordered 96watt instead of 65 by mistake.
anyway they are dual 65watt power compact orbit lights. 10,000k and 460nm acitinic.
there's no other algae in the tank but the green water andt he cheato in the refugium.

I don't have a phospate test kit, and the other tests are about a year old.

i guess i'll ahve to order one.

asherah

[Myka]

How long has this been happening? Is the water cloudy grey? white? green? Keep using the PHosBan, the SeaChem version isn't as good. Your phosphate media should be dark reddish brown...if you have a white version it isn't nearly as good.

[asherah]

ok it is white.. i didn't even know there was a brown kind.. i'll have to try that too then.
the water in the tank is green... =(

it's been doing this for months!! I thought I had it cleared up but I was wrong!

asherah

[Johnny Reefer]

Originally Posted by Jason McK

..... The end of the nitrogen cycle is Nitrate. You rock is not expected to convert Nirtate to anything. ....

If I'm not mistaken, Nitrate is converted to Nitrogen (Denitrification). My understanding is that LR plays a role in this. There are certain bacteria in LR that support denitrification. The nitrogen is gassed off with good circulation and surface agitation. Not sure if this is relevant to your issues. Just 2 cents for the record.

Cheers,

[Jason McK]

Yes the theory is that with in the LR there will be anaerobic bacteria that converts Nitrate to Nitrogen. This is not always possible, with high bioloads and rock too dense or too porous.
that is why 'we' have added DSB, Refugiums, and Coil denitrators.
But having Rock that can not convert Nitrate to Nitrogen does not render it useless

J

[Johnny Reefer]

Originally Posted by Jason McK

....But having Rock that can not convert Nitrate to Nitrogen does not render it useless....

Sorry. I'm confused. I'm not suggesting the LR is useless. To the contrary, I'm suggesting that the LR should be doing more than just nitrification. I must have misinterpreted your other post. I thought you were speaking of all LR as not being expected to convert Nitrates to anything. Didn't realize you were specifically addressing asherah's LR.
This is why I hardly post on here anymore. Always misinterpreting.