HANNA checker for testing phosphates?

nam2212 · 02/27/2013, 10:33 PM

I am looking to get a checker but I am confused about which one to purchase. There are 3 different checkers for phosphates. I also noticed that others said to get the PHOSPHORUS checker as it is more accurate. Which one am I supposed to purchase?

yort265 · 02/28/2013, 01:04 AM

Don't know if I bought the right one or not, but I have the Low Range Hanna Phosphate meter.

http://www.bulkreefsupply.com/hanna-...lorimeter.html

nam2212 · 02/28/2013, 05:16 PM

Any more opinions?

shaggss · 02/28/2013, 11:38 PM

You want the Phosphous checker.......

outssider · 03/01/2013, 07:31 PM

+1 Hanna 736

bezlar · 03/01/2013, 08:50 PM

I have the 713 low range phos checker. I'm wondering why you say 736? Do I have wrong one? Is the 736 more accurate?

kga943 · 03/01/2013, 09:35 PM

i have the 713 seems to work good

benjc · 03/01/2013, 11:42 PM

My understanding is the phosphorous meter goes lower, but that you need to convert the phosphorus (simple multiplication/division) to phosphate.

notclear · 03/02/2013, 05:30 AM

Go for the 736.

keithhays · 03/02/2013, 05:37 AM

I didn't know there were 3, but of the two I know about; one is PPB (parts per billion) and the other is PPM (part per million). Obviously, the PPB would be more accurate, but whether or not you need to register less than zero PPM, you will have to decided for your tank. If so then you will need the PPB.

nam2212 · 03/04/2013, 11:35 PM

Quote:

Originally Posted by benjc

My understanding is the phosphorous meter goes lower, but that you need to convert the phosphorus (simple multiplication/division) to phosphate.

I ordered the 736. What calculation will I need to do to convert to phosphate?

biodegraded · 03/05/2013, 12:00 PM

Multiply by 3 (close enough) for ppb PO4. Divide by 1000 if you want ppm.

notclear · 03/09/2013, 07:21 AM

Multiply by 3.066 and divide by 1000.

whitesquall · 03/09/2013, 10:08 AM

OK... looking to pick-up one of these Hanna Checkers and my question is:

Is there a difference between Phosphorus and Phosphate??

If so which tester do we want for a reef tank? the 736 or 713?

-Alex.

nam2212 · 03/11/2013, 09:30 PM

I was able to test my top off water tonight. I suspected my RODI unit might not be all that great. I got a reading of 0.058 after the calculation. Is this a really high reading? I realize it needs to be 0 but my reading is still low. Also, the checker says "marine" on the front. Does that mean it should only be used to test salt water?

02/27/2013, 10:33 PM	#1
nam2212 Registered Member Join Date: Oct 2004 Location: Memphis, TN Posts: 1,257	HANNA checker for testing phosphates? I am looking to get a checker but I am confused about which one to purchase. There are 3 different checkers for phosphates. I also noticed that others said to get the PHOSPHORUS checker as it is more accurate. Which one am I supposed to purchase?

02/28/2013, 11:38 PM	#4
shaggss Registered Member Join Date: Feb 2001 Location: Hong Kong Posts: 1,709	You want the Phosphous checker....... __________________ NEVER get eye level with an infants anus! New build, planning stages. 30 x 20 x 20", Geisemann Spectra 250W with Radium, Profilux controller, Profilux doser 2, Fluval SP4 return pump, Life Reef 28

03/02/2013, 05:30 AM	#9
notclear Registered Member Join Date: Nov 2009 Location: Toronto, Canada Posts: 519	Go for the 736. __________________ Red Sea Reefer XL525

03/09/2013, 07:21 AM	#13
notclear Registered Member Join Date: Nov 2009 Location: Toronto, Canada Posts: 519	Multiply by 3.066 and divide by 1000. __________________ Red Sea Reefer XL525

02/28/2013, 01:04 AM	#2
yort265 Registered Member Join Date: Sep 2012 Location: East Texas Posts: 143	Don't know if I bought the right one or not, but I have the Low Range Hanna Phosphate meter. http://www.bulkreefsupply.com/hanna-...lorimeter.html

02/28/2013, 05:16 PM	#3
nam2212 Registered Member Join Date: Oct 2004 Location: Memphis, TN Posts: 1,257	Any more opinions?

03/01/2013, 07:31 PM	#5
outssider Registered Member Join Date: Nov 2009 Location: Reseda, Ca. Posts: 1,717	+1 Hanna 736

03/01/2013, 08:50 PM	#6
bezlar Registered Member Join Date: Jan 2008 Location: Blue Springs Posts: 432	I have the 713 low range phos checker. I'm wondering why you say 736? Do I have wrong one? Is the 736 more accurate?

03/01/2013, 09:35 PM	#7
kga943 Registered Member Join Date: Apr 2011 Posts: 504	i have the 713 seems to work good

03/01/2013, 11:42 PM	#8
benjc Registered Member Join Date: Aug 2011 Location: Thousand Oaks, CA Posts: 636	My understanding is the phosphorous meter goes lower, but that you need to convert the phosphorus (simple multiplication/division) to phosphate.

03/02/2013, 05:37 AM	#10
keithhays Registered Member Join Date: Apr 2012 Location: Tennessee Posts: 1,259	I didn't know there were 3, but of the two I know about; one is PPB (parts per billion) and the other is PPM (part per million). Obviously, the PPB would be more accurate, but whether or not you need to register less than zero PPM, you will have to decided for your tank. If so then you will need the PPB.

03/05/2013, 12:00 PM	#12
biodegraded Registered Member Join Date: May 2004 Location: Coast Range, Oregon Posts: 380	Multiply by 3 (close enough) for ppb PO4. Divide by 1000 if you want ppm.

03/09/2013, 10:08 AM	#14
whitesquall Registered Member Join Date: Dec 2003 Location: in salt water Posts: 699	OK... looking to pick-up one of these Hanna Checkers and my question is: Is there a difference between Phosphorus and Phosphate?? If so which tester do we want for a reef tank? the 736 or 713? -Alex.

03/11/2013, 09:30 PM	#15
nam2212 Registered Member Join Date: Oct 2004 Location: Memphis, TN Posts: 1,257	I was able to test my top off water tonight. I suspected my RODI unit might not be all that great. I got a reading of 0.058 after the calculation. Is this a really high reading? I realize it needs to be 0 but my reading is still low. Also, the checker says "marine" on the front. Does that mean it should only be used to test salt water?