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Old 05-18-2005, 10:10 AM   #11
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Another thing to consider: fish, invertebrate, etc..., live, breath, eat, pee and poop in that water. Eeww... How can it be healthy for live creatures to live in a high nitrate environment. Partial water changes are a must, IMO and from most other aquarists, to ensure a healthy tank and livestock. My $0.02 on this.

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Old 05-18-2005, 12:15 PM   #12
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I am 100% with you guys in that maintaining low nitrate levels is necessary in maintaining optimal health for fish and inverts. I was in no way suggesting 160 ppm nitrate is acceptable, desirable, or in the best interest of any fish or invert (all 3 of my reef tanks are kept between 0-3 ppm nitrate through macroalgae refugiums).

I was just questioning whether anyone can be sure that excessive nitrates are going to definately kill fish. To be quite honest with you, I don't think the triggers, groupers, and lionfish in the display tanks at the LFS (previously mentioned) care whether the nitrates are 0 ppm or 150 ppm, as long as they are being fed. But I'll also admit that triggers, groupers, and lions are very hardy fish. JMHO Thank you for your inputs.
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Old 05-18-2005, 12:18 PM   #13
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Makes for an interesting debate.

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Old 05-18-2005, 12:41 PM   #14
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He already has a sump with macro algae in it. He already has 2#/g of LR, already has lots of sand. Those are the things that most people would advise for lowering nitrates. Some of the things (apart from the obvious) would be a bigger skimmer (one for about 2x the gallons of his tank, at least), a denitrification chamber, mangroves...

The problem with the fish that you have (apart from the fact that they are likely to make very expensive meals out of your inverts) is that you have two very messy, carnivorous fish. A messy fish is going to pollute the water, a carnivore's diet is harder to breakdown in the tank than an herbivore. Those two things are going to contribute to water quality problems. The mag 12 is probably only pushing about 1000gph into your tank plus the 250 gives you 1250. You might benefit from some additional flow, a larger fuge with a DSB in it...

Good luck finding an answer that works best for you.

And shame on the lot of us! Welcome to AA! Sorry that your first adventure on the board turned into a debate. Stick around. I'm sure you'll find this a great source of friendship and information!

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Old 05-18-2005, 01:12 PM   #15
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elke, Welcome to AquariumAdvice.com!!!
I think it goes woithout saying that we should all strive to keep water parameters as good as possible. That includes nitrates. It may not have an immediate effect on fish but think of it as living in a city breathing smog for your entire life. Long-term effects can be harmful.
As mentioned...Your high NO3 is due to your stocking load and fish choices. I am sure feeding is also a contributing factor. What to do...Begin thining your livestock. 15% water changes using a high quality RO/DI water every three or four days until levels start to come down. What are you using for a substrate?
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Old 05-29-2005, 01:16 AM   #16
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well ty all for the info as for my mag 1200 and 250 i'm pushing 1400 in my tank not to get you wrong about what you thought i was but ty for helping me with advice but i found the prob did 2 50% water changes brought down to 40ppm now 15% a week cutting it lower and all my creatures are more happy.. woohooo lol. but everything is a learning curve now i have learned the imporantce of water changes its all about changeing that water not like my ciclid tank where i can sit back and watch them swim my new 90 salt tank is something i have to be part of ty again for all the help........
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Old 05-29-2005, 04:11 AM   #17
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Great that your nitrates are now down to a manageable level. Your fish must be so happy As for the mag 12 pushing 1200gph into your tank... unless pump is at tank level, zero head with no elbows or Ts, then it is pushing closer to 1000.

Mag Drive #12 Flow (gph)
1200 (0ft)
1150 (2ft)
1100 (4ft)
910 (6ft)
700 (8ft)
600 (10ft)
15' (max) 110 (watts)

Thanks for the update. It is good to see what can be done with a little diligence.
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