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Unread 12/13/2017, 07:58 PM   #1
rjjr1963
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If it ain't broke don't fix it???

My phosphates are reading .009 on the Hannah ULR tester. Is this too low and should I try to raise it?

My 40 gallon tank is one year old and the tank has virtually no algae, the corals are doing great (SPS/LPS)and the 3 fish are plump and happy.

Nitrates are 2-5
Alk is 8.6
Ca is 420
Mg is 1420

I dose Red Sea Alk,Ca, NoPox and Reef Energy A/B.


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Unread 12/13/2017, 08:01 PM   #2
Cheapreef
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Do not mess with it, if your corals are looking good leave it alone. Those numbers are perfect IMO.


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Unread 12/13/2017, 08:15 PM   #3
bertoni
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I would leave well enough alone, personally.


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Unread 12/14/2017, 01:44 AM   #4
rjjr1963
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Agreed. Less is more.


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Unread 12/14/2017, 07:15 AM   #5
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I agree, if everything is growing and appears healthy I'd leave it alone. You can always feed a little bit more to raise the level but that does come at the risk of creating a problem.


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Unread 12/14/2017, 08:00 AM   #6
VoltzNSalt
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Like your title states...if it ain't broke don't fix it


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Unread 12/14/2017, 09:50 AM   #7
pisanoal
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Quote:
Originally Posted by rjjr1963 View Post
My phosphates are reading .009 on the Hannah ULR tester. Is this too low and should I try to raise it?

My 40 gallon tank is one year old and the tank has virtually no algae, the corals are doing great (SPS/LPS)and the 3 fish are plump and happy.

Nitrates are 2-5
Alk is 8.6
Ca is 420
Mg is 1420

I dose Red Sea Alk,Ca, NoPox and Reef Energy A/B.
Are you seeing a reason to change something in your tank? If not, why go chasing numbers just to chase them? If you are seeing paling or something of that nature, then maybe look to make some minor adjustments where it makes sense, but to chase numbers just to chase them doesn't make sense to me.


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Unread 12/14/2017, 09:52 AM   #8
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Also note that your measuring phosphorous, and there is a conversion chart floating around here somewhere. Your phosphate number is higher then the direct ppb readout of the Hannah ulr.


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Unread 12/14/2017, 10:53 AM   #9
bertoni
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To convert the ppb from the ULR, multiplying by 3 is more than close enough.


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Unread 12/14/2017, 11:13 AM   #10
Cheapreef
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To convert the ppb from the ULR, multiplying by 3 is more than close enough.
What? You would multiply the number from the ULR hanna by 0.003066, not sure where 3 comes in?


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Unread 12/14/2017, 11:24 AM   #11
bertoni
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What? You would multiply the number from the ULR hanna by 0.003066, not sure where 3 comes in?
I gave the conversion to ppb-phosphate, which is close enough to a multiply by 3 for our purposes. For ppm, you need to divide by 1000, as well.


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Unread 12/14/2017, 11:46 AM   #12
pisanoal
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To convert the ppb from the ULR, multiplying by 3 is more than close enough.
Awesome, thanks for that info. I knew it wqs something close to that


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Unread 12/14/2017, 12:21 PM   #13
Cheapreef
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I gave the conversion to ppb-phosphate, which is close enough to a multiply by 3 for our purposes. For ppm, you need to divide by 1000, as well.
Ah ok I didn't see the b. I just multiply the number on the Hanna reader by 0.003066 which give the relevant number that most use.


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Unread 12/14/2017, 12:34 PM   #14
bertoni
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Yes, we do tend to use only ppm-phosphate in the hobby.


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Unread 12/15/2017, 11:11 AM   #15
rjjr1963
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Quote:
Originally Posted by pisanoal View Post
Also note that your measuring phosphorous, and there is a conversion chart floating around here somewhere. Your phosphate number is higher then the direct ppb readout of the Hannah ulr.
Yes, the phosphorous is reading 3 which converts to .009 if my math is correct.


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Unread 12/15/2017, 11:51 AM   #16
Cheapreef
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Yes, the phosphorous is reading 3 which converts to .009 if my math is correct.
Yes that is correct, if I read 30 or anything less on my Hanna I don't give it a second thought.


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