Question about fish bio load

[Xzap]

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

 

[Jchillin]

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.

 

[rich311k]

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.

 

[Zagz]

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/

 

[Jchillin]

Flourish nitrogen. Great product. I just got in another shipment from Drs. Foster&Smith. Follow the directions carefully.

 

[Zagz]

Thanks JC! I will look into getting some ASAP!

 

[jrp1588]

My fish are major poop factories. I do just fine as far as nitrate goes. lol