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I have fish with only live rock tank..........can youpls advise how to reduce nitrate level immediately ..currently the nitrate level is 90 ppm...pls help.
great advice +1You don't want to do huge changes to your fish tank. Whether its reducing nitrate or ammonia, the slow and steady route is always the best IMO.
I have fish with only live rock tank..........can you pls advise how to reduce nitrate level immediately ..currently the nitrate level is 90 ppm...pls help.
first of all 90ppm for a fish tank is not all that bad.
Secondly, in a newly setup up tank with lotsa algae even corraline on live rock an initial nitrate spike is very very common as the algae consumes ammonia directly for nitrogen instead of nitrates. Then as aerobic bacteria build up, the algae has less and less ammonia to consume to starts consuming nitrate. So after a few weeks nitrates drop down. If this is the case basically you should do nothing.
Finally, if you do not have algae you could add macro algaes (in a refugium) which will not only help lower nitrates but prevent dangerous spikes by consuming any "left over" ammonia directly.
What I do is always start a tank with macro algaes. But that's just me and my.
.02