Hello guys I been testing my po4 with hanna checker phosphate ulr for about a month it always says 0.03.....so I decided to test it with my hanna checker low range and it says 0.00......so what's u guys my think phosphate is at?
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The allowable error rate for the Hanna phosphate ULR is +- .02 so both test kits are probably correct....or as close as you are going to get with hobby grade test kits. I just realized you are in Broadview Heights...right down the road lol.Hello guys I been testing my po4 with hanna checker phosphate ulr for about a month it always says 0.03.....so I decided to test it with my hanna checker low range and it says 0.00......so what's u guys my think phosphate is at?
Nice to meet yaThe allowable error rate for the Hanna phosphate ULR is +- .02 so both test kits are probably correct....or as close as you are going to get with hobby grade test kits. I just realized you are in Broadview Heights...right down the road lol.
Do you find it’s a pain with the unit timing out while you’re processing the sample….?Hello guys I been testing my po4 with hanna checker phosphate ulr for about a month it always says 0.03.....so I decided to test it with my hanna checker low range and it says 0.00......so what's u guys my think phosphate is at?
YeaDo you find it’s a pain with the unit timing out while you’re processing the sample….?
Sorry read that wrong my unit dose not timeout as in stop working while testing?What’s your solution?
Makes me dread testing it…
The unit shuts off after 2 minutes. I do the calibration then it takes like 3 minutes to use the reagent and shake the sample so the units shuts off. power saver or somethingSorry read that wrong my unit dose not timeout as in stop working while testing?
Mine dose not shut off untell 2 mins after I get my readingThe unit shuts off after 2 minutes. I do the calibration then it takes like 3 minutes to use the reagent and shake the sample so the units shuts off. power saver or something
Which model,do,you have? The 774 does shut off in 2 mins, you get plenty of time, I believe the phosphorus check has a very short shut off timer tho.The unit shuts off after 2 minutes. I do the calibration then it takes like 3 minutes to use the reagent and shake the sample so the units shuts off. power saver or something
Which model,do,you have? The 774 does shut off in 2 mins, you get plenty of time, I believe the phosphorus check has a very short shut off timer tho.
This is for fish only phosphate reading. I would recommend buying the phosphorus ULR. I believe it is 736 model.
Wait what? I have the ulr phosphate hanna checker ur saying it the wroung test kit? For a reefThis is for fish only phosphate reading. I would recommend buying the phosphorus ULR. I believe it is 736 model.
sam
It’s low range…good enough for fish only system. For reef tank where the ideal phosphate is 0.04 ppm, it does not measure that low properly. It will always show as zero. Been there done that and that’s how I know. Here is the link to 736.Wait what? I have the ulr phosphate hanna checker ur saying it the wroung test kit? For a reef
I have this one https://www.hannainst.com/phosphate...C1OjwqSKS2rGTxsjaaRUaD3X8ctGivtAaAjS8EALw_wcBIt’s low range…good enough for fish only system. For reef tank where the ideal phosphate is 0.04 ppm, it does not measure that low properly. It will always show as zero. Been there done that and that’s how I know. Here is the link to 736.
do remember to convert from phosphorus to phosphate. I generally read 10 on 736 as good. Less than that is not good either. Anything above 30, time to check what’s causing the extra phosphate…
HI736-25 Phosphorus ULR Reagents - Marine Water
Phosphorus Ultra Low Range reagent refills for the easy to use, handheld Phosphorus ULR Colorimeter HI736 Hanna Checker HC - Marine Water. 25 packets of reagent Item #: HI 736 -25www.bulkreefsupply.com
hope that was helpful
That checker has a -/+ of .04 I believe so your tank could be at .04 but the reading could be showing zero, likewise the tank could be zero but your checker showing .04 so not great if you are aiming for .03 but you could aim for say .05 which would keep you in the safe zone, above zero and below .1, so you don’t ever hit zero po4 in your tank, many aim for under .1 so don’t think you have to hit .03.Wait what? I have the ulr phosphate hanna checker ur saying it the wroung test kit? For a reef
My tank always reads 0.01 with my checkerThat checker has a -/+ of .04 I believe so your tank could be at .04 but the reading could be showing zero, likewise the tank could be zero but your checker showing .04 so not great if you are aiming for .03 but you could aim for say .05 which would keep you in the safe zone, above zero and below .1, so you don’t ever hit zero po4 in your tank, many aim for under .1 so don’t think you have to hit .03.
I always recommend the 774 model, it has a -/+ of .02 and the cutoff timer is more than enough to carry out all the steps before the checker cuts off.
Think I got my posts mixed up, you have the 736? The phosphorus checker, it has a -/+ of 10ppb which is .03 so is more than fine for your tank, just aim for .04 or above so you are always above zero.aiming for .04 means your tank could be anywhere from .01 to .07 if the reading is showing 0.04.My tank always reads 0.01 with my checker