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Old 10-05-2004, 07:57 PM   #1
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Nitrate level

My tank has been cycling for over a month now and I have yet to get a 0 NO3 level. NH4 and NO2 has been 0 for a couple of weeks but it seems that the NO3 won't go away. I've changed about 15 gal on my 75 gal tank but still no luck. Any ideas on why this is and what I can do about it?



75 gal SW tank, Eheim 2215 Filter, 45lb Figi Premium LR, 2 Maxi-Jet Powerhead/Pump Model 900

5 Dwarf Red Tip Hermit Crabs, 5 Dwarf Blue Leg Hermit Crabs, 3 Emerald Mithrax Crabs, 1 Cleaner Shrimp, 1 Fire Shrimp, 10 Cerith Snails, 10 Nassarius Snails, 6 Bumble Bee Snails, 16 Turbo Snails, 1 Brittle Sea Star

Yellow-tailed Blue Damsel, Foxface Lo, Coral Beauty Angelfish, Sailfin Tang, Scooter Blenny
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Old 10-05-2004, 09:55 PM   #2
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You are not going to get a 0 nitrate level unless you employ a NNR technique. You are going to need alot more LR in your 75g in order to get some NO3 reducing capability. You could also research using a DSB and/or an algae scrubbing refugium W/DSB. It is not necessary to have 0 NO3 as many corals like a little in the water. Under 10 is a realistic target.

46g SW, 65 lbs Fiji LR, 4" Aragamax DSB, Coralife 2X96w CF, CPR Bakpak II, CPR Aquafuge 12 w/ 2x9 Coralife Mini Aqualight, 4 Maxijet 600's, PCI 200W Titanium Heater, 2 Blue Green Chromis, 1 Gold Bar Maroon Clown, 1 Purple-Stripe Dottyback, Finger Leather, Trumpets, Rose Coral Open-Brain, Pagoda Cup, Xenia, Star Polyps, Yellow Polyps, Various Mushrooms, Toadstool Leather, 12 Astraea, 10 Nassarius, 4 Bumble Bee, 6 Cerith Snails, 12 Red Tip Hermits.
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Old 10-05-2004, 10:48 PM   #3
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there are several things you can do to reduce nitrates. Like mentioned previously, more LR. 2 lbs per gal is great. Also, try using RO/DI water fr changes and top-offs. If you have fish, limit the feedings to light ones once every other day. Nitrates are very difficult to get to zero. Many fish and inverts can stand moderate nitrate levels.
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level, nitrate, nitrate level

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