Potassium nitrate in top off water

[krausean]

Hi everyone. I've been silent on the forums, taking advantage of the wonderfully useful info on here.

I have a question about dosing kno3. I would like to add it to my top off water but have read that the stored solution needs to be sealed. Are there any negative effects to a low concentration solution being exposed to air for 4-5 days?

 

[Finhead]

Kind of curious on this myself since I have to dose nitrates to keep them detectable. Would save a doser head or manually forgetting to do it. LOL

 

[Randy Holmes-Farley Verified Community Expert]

It will be fine in top off water. I can't think of a particular reason it needs to be sealed.

 

[krausean]

It will be fine in top off water. I can't think of a particular reason it needs to be sealed.

Just the answer I was looking for! Thank you sir!

 

[Randy Holmes-Farley Verified Community Expert]

Just the answer I was looking for! Thank you sir!

You're welcome.

Let us know how it works out.

 

[David osborne]

Where do u guys buy the potassum nitrate from ? Lfs ?

I think this could be just what I need for my tank as I struggle to get about 0.2ppm nitrate

 

[smh254]

What about if you’re running Kalk can it still be added to ATO?

 

[Finhead]

Where do u guys buy the potassum nitrate from ? Lfs ?

I think this could be just what I need for my tank as I struggle to get about 0.2ppm nitrate

Here in Canada it's not super easy to come by, the Hydroponic store is where I get mine. Only place I found to carry it.

 

[David osborne]

Ok thanks finhead , over in England I can get it on line tho ,

Would I need to test for potassum when dosing it ? I guess I would need to

 

[Randy Holmes-Farley Verified Community Expert]

Where do u guys buy the potassum nitrate from ? Lfs ?

I think this could be just what I need for my tank as I struggle to get about 0.2ppm nitrate

You can get it from lots of online places.
https://www.etsy.com/listing/218876684/saltpeter-potassium-nitrate-food-grade
https://www.butcherspantry.com/curing-ingredients/fccusp-food-grade-potassium-nitrate-kno3-saltpetre

Sodium nitrate may be an even better choice for some folks.

 

[Randy Holmes-Farley Verified Community Expert]

Ok thanks finhead , over in England I can get it on line tho ,

Would I need to test for potassum when dosing it ? I guess I would need to

Not if you use sodium nitrate.

 

[Randy Holmes-Farley Verified Community Expert]

What about if you’re running Kalk can it still be added to ATO?

Yes.

 

[David osborne]

Funny how these days no body wants ULNS !

10 years ago it was considered the only way to succeed and now its a pain in the ****

 

[MTBake]

Not if you use sodium nitrate.

Curing salt?

Or this...not sure if they're the same or not

https://www.amazon.com/gp/aw/d/B019...236_SY340_FMwebp_QL65&keywords=sodium+nitrite

 

[Randy Holmes-Farley Verified Community Expert]

Curing salt?

Or this...not sure if they're the same or not

https://www.amazon.com/gp/aw/d/B019...236_SY340_FMwebp_QL65&keywords=sodium+nitrite

That looks fine. [emoji3]

 

[MTBake]

That looks fine. [emoji3]

Thank you!

 

[David osborne]

I HATE my Samsung galaxy 8

 

[krausean]

I brought my nitrate up to 5ppm. I'm using the Red Sea pro test kit to test nitrate. I'll monitor its consumption for the next few days. Once I figure out daily uptake, I'll add potassium nitrate to my topoff water. The plan is to only check the tank's nitrate when I fill my topoff water bucket and adjust accordingly.