Nitrates making me nuts

I have the exact same problem. But my nitrates are 30 and I have fish...

Without any fish and only cleanup crew - my nitrates were 5 - 10.

What kind of test kit are you using?

How aggressive is your skimming?

What kind/how old is your salt?
 
Also, how much live rock and what kind? How was is cured? It's a simple diagnosis that your rock is leaching nitrates....
 
The rock was cured in the tank at start up. was very patient with the process. Phophates and Ammonia were never a problem. Did numerous water changes. Im trying my best with the skimming, and am wondering if the skimmer is underpower for the size tank. I have approx. 115 lbs of live rock. Also wondering if the sand in which the rock was cured on is leaching nitrates. The sand isnt bad but not as pristine as others I have seen on this site. I use salifert test kits across the board.
 
Everyone seems to have nitrate problems. I guess I am blessed to have never had that issue. I haven't really had any water problems. I wonder if I am doing it wrong. hahaha.
 
If you want to see results increase your water changes, bump it up to 30-40% I do 45% every 2week... I would start by getting your nitrates down via water changes, and then try to figure out if/why they rise.

You can do water changes very often without to much negative impact.
 
Live rock can't leach nitrate. Phosphate can adsorb onto the rock, but nitrate can't. The nitrate could be coming from dying animals in the rock, or perhaps some organism is fixing nitrogen from the air. In most cases, nitrate originates with the food.

I agree that the flow should be fine. Have you tested the RO-DI output? There might be a test kit issue.

I wouldn't remove live rock from the tank to scrub it, if that's what you're doing. That could kill organisms and feed the algal bloom.

I'll have to think a bit about this one.
 
I am now tagging along as well to this one. My tank is only 4 months old, but I can't remember ever seeing my nitrates at anything other than 20. They have never climbed over 20, but I have never been at 0.

I know the whole bioball situation causing the nitrates, but at only 4 mos old, could they be that much of an issue at this point??
 
i used az-no3 and my nitrates went from 20 to 0 in less than 2 weeks....on the 4th month of running my tank i had corals and 2 clown fish and a yellow watchman 6 hermits and 3 snails and a blood shrimp on a 29 biocube. my fish didnt take well with the additive only the yellow watchmen survived. the stuff worked though. my nitrates were 20 and every week i made a 4 gallon water change and it never went down. i read somewhere to try this and i worked in less than 2 weeks. you put like 2 drops on a 55g on the 1st day the 4 on 2nd 8 on 3rd you stop around 80 drops i think, then decrease the drops.. i started on the first water change 7 days later i made another water change then noticed i was at 0 , 7 days later made another water change.
this was my last weekly water change now i do it monthly and i have 2 tomato clowns the yellow watchmen, shrimp same scavengers..i keep a log and my nitrates dont go up.

it s called az-no3, by the way i have a tunze reef pack it skims the top of the water i put some carbon in it first the i put filter floss on the top i change the floss once every 2 weeks.
 
Thanks for all the info. I was thinking of using az-no3 also if nothing else worked. Iv never been able to get the nitrates down below 15 even after 50% water changes. Could it be the depth of sand or the fact that the sand was in place during the curing process? Im also wondering if Im skimming correctly or with a skimmer that is too small for my set-up. The skimmer is producing some coarse bubbles and dark skimmate at times and then will not produce anything. It seems very inconsistant.
 
Skimmers are often inconsistent, but yours might need some tuning. The Euro-Reefs get generally good reviews, but I don't know how to tweak them.

Having the sand in place for the curing process is not the issue. I do that with all my tanks.
 
<a href=showthread.php?s=&postid=11546828#post11546828 target=_blank>Originally posted</a> by george81
also try products like zeovit or ultralith...they are scientifically proven to work.

"Scientifically proven" is more than a little bit of a stretch for those products.

Dave
 
try the az-no3, when i started using it the top of my water started filming up and my white filter floss removed that and my nitrates dissapeared. i also run a skimmer a tunze reef pack skimmer i really dont bother with it anymore. i have a 29 biocube so i modified it and put it in the back where the bioballs were but my water level there is inconsistent sometimes i get some skimming when i top off , i know if i didnt use it the nitrates would be 0
 
I tried vacuming the sand bed a bit in the past. It created quiet a mess. I only did a small spot. Was afraid of taking up to much "good stuff" in the sand. The only time I was able to get my nitrates down was when I used chemi-pure. It did a great job, but was messy with the charcoal dust.
 
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