HIGH NITRATES !! HELP PLEASE !!

[hondaboi2000]

I currently have a 55 gallon reef tank which was packed full of corals along with about 10-12 small fish...Currently setup a little over a year with all water parameters where they should be except for my nitrates which have gone up to around 100 ppm....I have started loosing corals rather fast...have lost my hammer, torch and frogspawn within a week...Being that all water parameters are fine for the exception of nitrate, is this the cause of the corals dying...I'm fairly new to this and learning all the time..I've ordered several products from seachem that are suppose to help control nitrates and have done a couple water changes, but not much luck...I have heard if I do water changes very frequently that the nitrates will drop, but how do I keep them from coming back or at least within manageable ranges? Any suggestion or products to try would be so kind..I really need you guys help please
many thanks to all

 

[eeyrg]

How deep is your sand bed?
Did you make any changes to the tank before the corals started to die?

 

[treble]

What are these 10-12 small fish, sizes also please. My friend had the same thing, tank set-up for a year, 60 gallon, nitrates shot up and killed aot of his corals in the end. His nitrates are still at 50 today even with plenty of 50% water changes...he had to many fish, added to fast, to small a tank.

 

[nm reef]

Really need additional information...filtration...amount of LR...type&amount of substrate...circulation...lighting...current water tests.
But just from initial info it looks like a rather high bio-load with the number of fish you have. Can rapidly contribute to increase in nitrates. Plus with no other info yet its hard to tell if your filtration is capable of keeping pace. Yes...your nitrate levels can be causeing problems with your corals. Post all available info so folks here can get a better idea of whats going on...then maybe somebody can help you correct things right quick(but nothing except problems ever seem to happen fast)...

 

[ak_reefer]

Wow 10-12 fish in a 55 gallon is a lot. With that amount of fish your bioload is huge. They are for sure adding to your nitrate problem. When you say "10-12 small fish" what kind of fish are you talking about. How much lr do you have in your tank, how deep is your sand bed. Also what kind of filtration do you have. What are your exact water parameters Ammonia, Nitrites, Nitrates, Phosphate. You may want to get a Phosphate test kit as well to many phosphate in your tank could also cause the death of your corals. I do suggest doing some water changes. But a little more info would help.