Nitrates = 250+

Hmm, in a year old tank your nitrites should really be zero. What brand of test kit are you using?
 
for the next few weeks i would do water changes, cut down on the lighting a little bit and dont feed as much. along with carbon and cleaning all your filters weekly. good luck
 
wet-dry filter is so oxygenated that denitrification does not take place. You need a separate place for denitrification.

Your DSB is not working, not at all or too small or not well enough.

Even in the old-old days of undergravel filter with several inches of crushed coral (don't laugh), there are still dead pockets here and there for some denitrification.
 
HI,

250 is high but I agree dropping it too quick may cause more problems.
I do thing the nitrate levels race is abit too much, all tanks are closed systems and so to expect and chase the below 1ppm is something alot of us cant get too. Or have the time or money too.

If the fish are acting fine and feeding then dont worry to much.

It's different if you have a few $1000 of coral in tank, but spending your time checking levels every day it just crazy. If you have had your tank for over 6months you can spend 5 mins in morning and you can tell if all is ok.

But for people who like to spend their time doing chemistry tests I guess it's fine for them but I keep fish to enjoy not saltwater to test.

IMO this testing has just gone too far and is a money making game or a hobby to brag to your friends. Mines smaller than yours. HEAT will kill your fish alot quicker than No3

Ande
 
What kind of water are you using? Not sure if it could be an issue, but if you are using well water you may want to get it tested.
 
<a href=showthread.php?s=&postid=10658384#post10658384 target=_blank>Originally posted</a> by FREAKABHISHEK
i use tap water

That could have something to do with it. Get your tap water tested. You will probably want to switch to RO water.
 
They make NO3 adsorbing media, but I don't know how effective it is. Grow some chaeto somewhere and clean any floss or sponge material twice a week until it comes down, then weekly. Use some polyfilter, that stuff is awesome.
 
With regard to your nitrate kit being maxed out, you can dilute your sample 1:1 or 2:1 etc with distilled water till you get a reading that is within the range of your kit, then multiply that reading by your dilution factor to get your actual levels. This way you can get a baseline to see what measures are working.
 
Are you testing with your kit on the low range (following the directions as written on the back of the card) or are you doing the extra steps to move your results over to the high range scale.
 
Could definitely be the tap water, I can't remember the exact amounts but mine had a huge amount when I tested it directly from the faucet. It the tap water is a source for nitrates then water changes are not helping your trouble. Take water straight from the tap to LFS and have tested for nitrates. Either way you should definitely use RO water.
 
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