Nitrites in aquarium

[dannyd]

What is the best way to keep nitrites down it the aquarium? My tanks seems to want to stay around 20 on the chart on nitrites. My tank is a 240 gallon with a 30 gal lifereef sump and skimmer. I have 260lbs of live rock and 2 inch sand bed. My fish population is 4" queen angel, 3" kolan tang, 5 clowns, 2 pigmy angels, bicolor angel, coral beauty angel, snow flake eel 8", cleaner wrasse, copper band butterfly, and a emperor angle jouvinile. I have a closed loop system with a 2900gph pump with the oceans motion 4 way to give the wave effect. My sump pump is a 1380 gph pump and getting ready to install a calcium reactor just waiting for a tank of co2.

 

[dnjan]

Reduce the fish load. It looks like most of your nitrogen cycle processing is coming from the sandbed, and you probably don't have enough sandbed area for that many fish.

Another option would be to add a fairly large refugium (along with your sump) to help with the waste processing.

 

[Boomer]

20 on the chart on nitrites.

I hope you mean NITRATE and not NITRITE