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Old 09-18-2005, 11:53 AM   #1
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Question about fish bio load

90 gal. tank.
My no3 stays at 10 ppm w/o dosing.
How much does the fish bio load effect the amount of no3 present in the tank ?

My fish are:
15 danios
8 catfish.. emeralds and corys
5 otos
3 common hatchets
3 bal sharks
1 wagtail platy
1 angel
1 parrot

It sounds like a lot of fish, but they're all relatively small except for the angel and eventually the parrot.



Thx,

dave
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Old 09-18-2005, 12:31 PM   #2
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I'm not sure of the formula, but the logic is that if you have a decent bio-load for a continuous 10ppm of NO3, you don't have to dose it.

I have a 75 gal with about 30 fish in it. All of them except the angels are under or at 2", so I have to dose NO3 almost weekly.
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Old 09-18-2005, 12:44 PM   #3
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My 36 has 2 angels and 7-8 small tetras, and two large upside down cats. I have to dose nitrates or my readings go almost to zero, I think it also depends on the number and type of plants you have.

Right now your tank must be in good balance nitrate wise. I am sure it will change as the plants anf fish grow.
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Old 09-18-2005, 01:05 PM   #4
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OK dumb question here, how do you dose the N03 to get it up to 10 ppm? My cichlid tank pretty much stays at 5 ppm as there aren't enough fish in there yet/
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Old 09-18-2005, 01:22 PM   #5
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Flourish nitrogen. Great product. I just got in another shipment from Drs. Foster&Smith. Follow the directions carefully.
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Old 09-18-2005, 01:23 PM   #6
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Thanks JC! I will look into getting some ASAP!
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Old 09-18-2005, 01:26 PM   #7
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My fish are major poop factories. I do just fine as far as nitrate goes. lol
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