10 ppm phosphate

eqbal9947

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Hey guys. Posting about my QT tank (first salt water tank)
My phosphate is at 10ppm and nitrate at 5ppm.
it seems that the phosphate is way too high I just did a 30% water change yesterdays.
Does this seem correct or viable?
My fish are fine, I have 2 clowns and a watchman goby in there
 

polyppal

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Hey guys. Posting about my QT tank (first salt water tank)
My phosphate is at 10ppm and nitrate at 5ppm.
it seems that the phosphate is way too high I just did a 30% water change yesterdays.
Does this seem correct or viable?
My fish are fine, I have 2 clowns and a watchman goby in there
3CAAFCC5-1622-476A-A9BD-0AFC1239C409.gif

10?!?! what test are you using?
Nearly every coral would surely be dead at 10
 

gbroadbridge

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Hey guys. Posting about my QT tank (first salt water tank)
My phosphate is at 10ppm and nitrate at 5ppm.
it seems that the phosphate is way too high I just did a 30% water change yesterdays.
Does this seem correct or viable?
My fish are fine, I have 2 clowns and a watchman goby in there
How do you know the phosphate is 10ppm?

Which test are you using and are you certain you are reading the test correctly.
 

sixty_reefer

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I’ve never used Hanna but you surely reading it wrong, ICP testing can only read up to 1.9 ppm is doubtful than Hanna can read higher than that
 
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eqbal9947

eqbal9947

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You did it again with an HI774 or with the HI713 shown in your picture?

The HI713 will give nonsense results with saltwater. Every test could give diferent results.
Did it with the same kit.
doni have to buy a new tester or use different reagent?
 

blaxsun

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That model Hanna checker is for freshwater and is not qualified for testing saltwater phosphate.

You need the HI774 for marine tanks
The Hanna HI713 phosphate tester is for marine or freshwater. The tester and reagents you're referencing are for the Hanna HI774 phosphorous tester.

OP, did you figure out what you may have been doing wrong with the tester?
 

gbroadbridge

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The Hanna HI713 phosphate tester is for marine or freshwater. The tester and reagents you're referencing are for the Hanna HI774 phosphorous tester.

OP, did you figure out what you may have been doing wrong with the tester?
Sorry, no.

I just double checked in case there was a difference in the US.

 

blaxsun

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Sorry, no. I just double checked in case there was a difference in the US.
I meant HI774 phosphate (not phosphorous, typo on my part). You were saying?

HI713 (same one OP and I have)... LR phosphate checker (marine/freshwater)
HI774 ... ULR phosphate checker (also marine/freshwater I'm assuming)
 

sixty_reefer

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You both right no need to argue, they both for marine the difference is one is low range and the other one is ultra low range (0.00 to 0.90 and 0.00 to 2.50 ppm)
 

gbroadbridge

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I meant HI774 phosphate (not phosphorous, typo on my part). You were saying?

HI713 (same one OP and I have)... LR phosphate checker (marine/freshwater)
HI774 ... ULR phosphate checker (also marine/freshwater I'm assuming)
Okay, happy to be wrong ;)

I better tell Hanna Tech support they gave me bad advice, lol.

The ULR does have marine printed on it, so perhaps that model is dedicated to saltwater.
 

blaxsun

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Okay, happy to be wrong ;)

I better tell Hanna Tech support they gave me bad advice, lol.

The ULR does have marine printed on it, so perhaps that model is dedicated to saltwater.
Not half as happy as I am (been using the darned thing for almost 2 years and I was starting to worry...!) :rolling-on-the-floor-laughing:

I couldn't ascertain if it was marine only or both. I'm not sure there's a huge benefit with the ULR kits for most of us.
 
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eqbal9947

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It’s reading something different every time. Today did it 3 times and got 0.11, 0.90 and 0.04… following all the instructions
 
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