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Old 05-13-2007, 03:53 PM   #1
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Any way to help with nitrates?!?

Hi. I have a 125 gallon tank with plenty of circulation and about 80 lbs of live rock.

Fish list:
1 yellow tang
1 bicolor blenny
1 diamondback goby
2 bar gobies
1 sixline wrasse
2 percula clowns


Inverts:
20 red leg hermit crabs
10-20 snails - astrea or nass mix
1 skunk cleaner shrimp


Tank has been up for a LONG time. well.. about 11 months. Nitrates are at 60. How can I get them down to 5?

My coraline is disappearing and peachy fuzz all over my rocks and equipment.

I was thinking 60 gallons a week of change.. but that means I will go through a 40 dollar bucket of salt in 2 weeks.

I'd like to keep water changes to bi-weekly at minimum but once a month better.

Anything else I can do?



I have a sump but it just houses a return pump and two heaters. I have a aqua c remora skimmer but I want to ditch that for a sump skimmer I think.

Do I need to add mechanical filtration such as a whisper power filter?


There are two RIO HF20 pumps in each side of the tank blowing to the center. Lots of water movement and surface aggitation.

What exactly would you recommend besides another 100-150 lbs in rock?


New Skimmer, Lighting etc? I would like corals soon. Skimmer is aqua c remora pro with mag . Lighting is 220w of VHO. Lets say five to six hundred is my max of my allowance?
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Old 05-13-2007, 06:02 PM   #2
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I would suggest adding 100+ more lbs of lr and your gonna have to do pwc's to get those nitrates down.
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Old 05-13-2007, 06:32 PM   #3
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Agreed -I would go for more rock , you want about 1.5-2lbs per gallon .
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Old 05-13-2007, 07:01 PM   #4
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At this point, frequent PWCs are in order. They will reduce your nitrAtes and help starve out the algae.
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Old 05-13-2007, 08:11 PM   #5
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Curious to know what type of filtration you're using other than the skimmer? I ask because I thought the Remora's were rated to be used ith tanks up to 120g and 80 lbs of LR is a small amount for a 125g tank.
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Old 05-13-2007, 08:21 PM   #6
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filtration is just the rocks and skimmer... maybe I need to add some mechanical filtration?


I dont think I can plop down another 500 on live rock.
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Old 05-13-2007, 09:53 PM   #7
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Well you need more rock. You should of started the tank off with around 180-200lbs of rock, not all had to be lr (like half lace or some other dry rock and half lr). That would of been cheaper and you wouldnt be having problems.

Like roka64 said your going to have to do frequent water changes to reduce the nitrates.

Just looking at the catalog from LiveAquaria.com lr costs:
$119.99 for 45lbs Fiji
$312.99 for 85lbs show size Fiji
$239.99 for 72lbs Tonga branch

Maybe you could get like 50-60lbs of lace rock or something like that (it runs at $2 per lb. at my lfs), place it underneath the rock you currently have, and then get another 50-60lbs of cured lr to save some money.

This is SW! You can't get away with being cheap or lazy lol
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Old 05-13-2007, 10:14 PM   #8
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What do you guys think of making your own rock?


Well I was given the tank for free. The rock I have actually came out of my 55 gallon tank, which is now a goldfish tank.
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Old 05-13-2007, 11:27 PM   #9
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I just replaced several pounds of non-ocean rock with 45lbs of live rock that came in with much dying plants etc...should have scrapped it off....now my tank is cycling again and I am having some nitrate problems of my own. I have not owned a RO/DI unit in the past but have one coming in this week and plan on doing a 50% change to get the levels down.

The reason I wrote this is just to suggest if you do go the live rock route and get a bunch in that has things that more than likely will not live...scrape it off, I left it hoping some of the things turned into nice hitchhikers.

The rock I had used to save some cash when setting it up were from older freshwater tanks...some sandstone and some other stones that were porous and just used them as base rock putting the real live rock on top.
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Old 05-14-2007, 01:16 AM   #10
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While it does seem like you could use a bit more live rock, I don't think that's going to help you at the moment with your nitrates. The only thing to get those down to 5ppm is water changes. And weekly, at that. Once you get them down though a once a month PWC, as you commented on, isn't going to keep them down.

Looks like you can either spend money on rock, or spend money on salt. But for now, spending money on salt is the only way it's gonna happen.
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