Do they both go down same percentage?

[Heres_doe_]

If phosphates go down 50% due to water change will nitrates also go down the same amount or even close to that amount? I have no HR nitrate reagent so I'm doing math trying to figure out about how much nitrates i have.

 

[sfin52]

If phosphates go down 50% due to water change will nitrates also go down the same amount or even close to that amount? I have no HR nitrate reagent so I'm doing math trying to figure out about how much nitrates i have.

If you do a 50% water change assuming zero nitrates and phosphates in the water than they will go down by 50%. If you do a 10% they should fall my 10% .

 

[Pistondog]

If phosphates go down 50% due to water change will nitrates also go down the same amount or even close to that amount? I have no HR nitrate reagent so I'm doing math trying to figure out about how much nitrates i have.

If you measure po4 immediately after the water change then yes. But the rocks and sand also hold phosphate. After reducing the water po4, some rock po4 will gradually leach into the water, over hours, until they are at equilibrium again. So measured a day later you also have the leached po4 in the mix.

 

[sfin52]

The only way to know numbers is to test. Guessing and acting on that guess will get one into a lot of trouble.

 

[Heres_doe_]

If you measure po4 immediately after the water change then yes. But the rocks and sand also hold phosphate. After reducing the water po4, some rock po4 will gradually leach into the water, over hours, until they are at equilibrium again. So measured a day later you also have the leached po4 in the mix.

But would it be a drastic difference like would rock hold like .8 phosphates or would it be miniscule. Because if very tiny amount doesnt matter I'm just looking to a roundabout number of where my nitrates are.

 

[sfin52]

But would it be a drastic difference like would rock hold like .8 phosphates or would it be miniscule. Because if very tiny amount doesnt matter I'm just looking to a roundabout number of where my nitrates are.

You could have low phosphates and high nitrates or vise versa. Or high for both. Testing is the only way to figure this out. A SIMPLE Api nitrate test will give you an idea

 

[Heres_doe_]

The only way to know numbers is to test. Guessing and acting on that guess will get one into a lot of trouble.

Imma test i found some finally they come in tomorrow I'm just tryna see if that's the case of them going down about the same percent. And also trying to figure out if that can be an issue as to why my euphyllia aren't as open as before. I've made no changes but if all is right my nitrates should be around 3.25 ppm. Would that be a reason why they are some what not fully open.

 

[Heres_doe_]

You could have low phosphates and high nitrates or vise versa. Or high for both. Testing is the only way to figure this out. A SIMPLE Api nitrate test will give you an idea

I forgot i had API test kit lol thanks

 

[Heres_doe_]

You could have low phosphates and high nitrates or vise versa. Or high for both. Testing is the only way to figure this out. A SIMPLE Api nitrate test will give you an idea

My phosphates are .23 currently and if I'm right my nitrates should be sitting in about 8ppm

 

[Pistondog]

But would it be a drastic difference like would rock hold like .8 phosphates or would it be miniscule. Because if very tiny amount doesnt matter I'm just looking to a roundabout number of where my nitrates are.

If you measure just after the water change, you're OK.
It is not miniscule. It is the reason water changes are inefficient for lowering po4 levels, there are more effective ways, lanthanum chloride, gfo, refugium etc.. depending on levels.

Run the test on your tank. Test po4 just after a WC, then a day or 2 later. Let's us know the results.

And get a nyos nitrate tester.

 

[sfin52]

Imma test i found some finally they come in tomorrow I'm just tryna see if that's the case of them going down about the same percent. And also trying to figure out if that can be an issue as to why my euphyllia aren't as open as before. I've made no changes but if all is right my nitrates should be around 3.25 ppm. Would that be a reason why they are some what not fully open.

Nitrates are good between 10-20. Some lps like higher nitrate levels. Thats not the only reason orals close up. Flow and lighting play a big role to.

 

[Heres_doe_]

If you measure just after the water change, you're OK.
It is not miniscule. It is the reason water changes are inefficient for lowering po4 levels, there are more effective ways, lanthanum chloride, gfo, refugium etc.. depending on levels.

Run the test on your tank. Test po4 just after a WC, then a day or 2 later. Let's us know the results.

And get a nyos nitrate tester.

I have hr nitrate Hanna checker just couldn't find reagent but i was very right i was in the ball park of how much nitrates i had

 

[Heres_doe_]

Nitrates are good between 10-20. Some lps like higher nitrate levels. Thats not the only reason orals close up. Flow and lighting play a big role to.

And that was my biggest change nitrates went down a lot. My flow and everything else hasn't changed they aren't fully closed they aren't fully open. I bet if i dose a bit of nitrates and bring them up while continuously bringing both down again little by little they'll be happier.

 

[sfin52]

I have hr nitrate Hanna checker just couldn't find reagent but i was very right i was in the ball park of how much nitrates i had

How new is the tank? Are you using a refugium?

 

[Heres_doe_]

How new is the tank? Are you using a refugium?

Tanks about 5 months old. I been bringing levels down for both of them. My levels were on July 4th at
32.4 Nitrates
.92 phosphates
So doing some math I'm at about 8ppm until I get my reagent tomorrow. I'm not making changes at all today. I'm just trying to figure out why they aren't as extended. When my water was dirtier they were all the way extended. I was told to bring my nutrients down slowly because leaving them high was bad. And no i don't have a fuge i have some dragons breath in my dt.

 

[Pistondog]

Like @sfin52 said, target 10-20ppm nitrate, 0.1 po4.
No need to dose nitrate.

 

[Heres_doe_]

Like @sfin52 said, target 10-20ppm nitrate, 0.1 po4.
No need to dose nitrate.

That's when my euphyllia looked better. How do I bring nitrates up and phosphates down.

 

[Pistondog]

That's when my euphyllia looked better. How do I bring nitrates up and phosphates down.

Run some gfo, I like rowaphos, in a reactor. If po4 > 0.5 ppm, then lanthanum chloride.

 

[Heres_doe_]

Run some gfo, I like rowaphos, in a reactor. If po4 > 0.5 ppm, then lanthanum chloride.

I don't have reactor

 

[Pistondog]

Then put some in a bag in a high flow area