My tank is two month old 75 G with 29G refugium.
Setup: 40 lb of LR, 50 lb of CaribSea dry rock, 80 lb of LS, RedSea Berlin
classic protein skimmer with a Rio HF20 pump.
live stock: a blue tang, a yellow tang, two percular clowns, four damsels
Zoos, elegant coral, xenia, colt, star polyps, anemones.
I think the biggest mistake for high nitrate was using tap water for
cycling. After that, I've used RO water for water change. Nitrate level is
maintained at 10 ppm over a month after I put macro algae in a refugium. I
thought macro algae coulld solve a nitrate problem, but it couldn't until
now. So, I'm wondering which one is better: water change frequently or wait
for more time.
Also, I use Nori to feed my yellow tang

Thanks.



"Mark Taylor" wrote in message
...
Need a little (lot) more info to advise properly. For example are you
using Live Rock? DSB? What Skimmer? Size of tank? etc

As general rules....if using live rock, make sure the structure is fairly
open with good circulation in/around. When I had a substantial nitrate
problem upping the circulationa around/through the rock was enough to sort
it. Clean your skimmer regularly. Think about your feeding/maintainance
regimens....is there a reason for the nitrates? What water are you using
for top up/water changes.....have you checked that you are not putting
nitrates into your tank?

There is no reason, with a bit of forethought, not to be able to manage
the nitrates. Water changes can help, but don't get to the root of why
the nitrates are there.

"swhastan" wrote in message
...
Hi, guys
I have a few corals in my aquarium.(Xenia, Zoo, Elegant coral, and
anemones)
Current nitrate level is around 10 ppm. Also, is this level of nitrate
really dangerous for my corals and anemone?
Also, I'm trying to reduce it with macro algae such as caulerpa in a 29 G
refugium, and denitrate matrix rock in power filter. Can I just wait for
low
nitrate level without water change?
Is water change is the only way to reduce it in a short time?

Thank you for reading.
Sungwon