I Received a NEW Trident NP Nitrate & Phosphate Tester!!!!

[JLab]

IMO! I think they should release a update allowing people to manually calibrate N&P valves
Why not!

 

[JeffB418]

They monitored my results against my Hanna HI736 results for several days and and NP values remain at least .1 lower than the Hanna. NP was zero yesterday and today while the Hanna read .05 yesterday .11. They basically said don't worry about them not matching and believe the NP to be accurate and to just look at the trends. They added engineering was working on improving software and procedures. I plan to try to bump up P04 slowly by dosing and see if I can maintain a .01 on the NP and try to correlate that to the Hanna and hope its close to .10 on the Hanna, my target. I can tell by looking at my tank I'm not bottomed out and its looking really well so hoping my target can be .01 on the NP and know its .10-.13 on the Hanna....which seems to be by best color/growth.

Hmm interesting. Yeah I am playing in the 0.03-0.06 area on hanna and still reading 0 on Trident NP. Wondering if I am in the same ballpark where im am too low for Trident NP to pick up on. But thats odd too since one test when i was actually 0.07 on hanna, Trident NP was also 0.07 and then back to 0 the next test. But even a broken clock is right twice a day, so maybe it was a random thing.

 

[braaap]

My NP is testing dead on to my hanna testers. Literally the exact same values.

 

[JeffB418]

My NP is testing dead on to my hanna testers. Literally the exact same values.

yeah mine was for the first week. What range are you running?

 

[braaap]

yeah mine was for the first week. What range are you running?

.03-.05 and 8-10. It’s been one week for me. I guess I’ll see in the next couple days if it stays steady.

 

[JeffB418]

.03-.05 and 8-10. It’s been one week for me. I guess I’ll see in the next couple days if it stays steady.

yeah that's almost identical to where I am. hmmm. I am working with support on a resolution still as well.

 

[buruskeee]

I used the calibration as soon as I got it and it has been doing fine so far for me

I just looked at the process, it looks like the solution is set to whatever internal numbers the NP is standardized for. I wish we could enter numbers from the tank to calibrate to rather than using a solution.

 

[cubsfan16]

I’m bumping PO4 up on my DOS 1ml a day on my IM150 till I get a reading while also testing with the Hanna. I also purchased the HI736 certified standard kit as well as purchased new hanna reagent and new cuvettes to try to eliminate any common issues with readings. I was at .10 on the Hanna and 0 again on the NP.

I received another message, this time from the support manager telling me calibration is not necessary and and it is trending with the Hanna....basically saying this is as good as it gets. Also said calibration simply allows the NP to be calibrated to the specific installation, such as head height and not to expect drastic changes to readings before/after.

Seems odd that other's are seeing tight correlation and others delta so wide. I wonder if those with the tighter correlational using a different Hanna? I wouldn't expect it to matter but still curious. I believe the HI774 effectively replaced the HI736 as they operate in the same basic range with the HI774 being a newer version.

 

[thedon986]

I’m bumping PO4 up on my DOS 1ml a day on my IM150 till I get a reading while also testing with the Hanna. I also purchased the HI736 certified standard kit as well as purchased new hanna reagent and new cuvettes to try to eliminate any common issues with readings. I was at .10 on the Hanna and 0 again on the NP.

I received another message, this time from the support manager telling me calibration is not necessary and and it is trending with the Hanna....basically saying this is as good as it gets. Also said calibration simply allows the NP to be calibrated to the specific installation, such as head height and not to expect drastic changes to readings before/after.

Seems odd that other's are seeing tight correlation and others delta so wide. I wonder if those with the tighter correlational using a different Hanna? I wouldn't expect it to matter but still curious. I believe the HI774 effectively replaced the HI736 as they operate in the same basic range with the HI774 being a newer version.

If they’re calling the difference between .1 and 0 no reason for concern, it kinda feels like this thing is gonna be a flop. I really hope they don’t just shrug their shoulders and say good nuff.

 

[cubsfan16]

If they’re calling the difference between .1 and 0 no reason for concern, it kinda feels like this thing is gonna be a flop. I really hope they don’t just shrug their shoulders and say good nuff.

I think I'm going to pick up a Salifert Po4 kit to have another data point. I really just to rule out my Hanna, though my gut tells me its right. The tank is clearly not at 0, SPS dominant tank with deep rich coloration that I expect at .1, I see things getting pale under .05 on the Hanna. Yeah telling me that it is trending and everything looks good and not appreciating that this range is not useful to most, had me a little miffed considering their claim is Phosphate: +/- 0.01 PPM, +/- 5% of reading. This should put the them with in .02 +/- of the hanna if you consider the Hanna's accuracy.

My goal in all of this is to be able to have confidence to dose P04/NO3 when traveling when needed as I have had 2 bottom outs resulting in dinos, which I am able to clear in 3 days but takes at least a month to recover from and typically loose at least 1 frag.

 

[braaap]

If they’re calling the difference between .1 and 0 no reason for concern, it kinda feels like this thing is gonna be a flop. I really hope they don’t just shrug their shoulders and say good nuff.

I don't know how it would be a flop. You are only hearing of a couple people having issues over how many thousands likely sold?

Trust me. I'm far from a Neptune support. I actually loathe them. But I don't see this as a flop. Not even close.

 

[cubsfan16]

I don't know how it would be a flop. You are only hearing of a couple people having issues over how many thousands likely sold?

Trust me. I'm far from a Neptune support. I actually loathe them. But I don't see this as a flop. Not even close.

While I agree, it wont likely be a flop. I expect it will improve over time. That said, I think the point made was calling good on a range of 0-.1 or higher. I'm also not sure how many are out in the wild quite yet. The sold out in a day on mostly trickles of stock so far.

 

[thedon986]

I don't know how it would be a flop. You are only hearing of a couple people having issues over how many thousands likely sold?

Trust me. I'm far from a Neptune support. I actually loathe them. But I don't see this as a flop. Not even close.

Yeah it’s not Red Sea level of threads being posted but more than a few. I hope they do resolve it though for these people. I would be pretty ticked if I just paid $800 for a tester spitting out zero and support says I’m just supposed to trend it. That can’t be the end of the issue and it probably won’t be.

I bought your Trident and if it was giving me 7 for my alk and all my other tests say 8.5 and support tells me just to trend it, I’m trashing that thing.

I would love to pick one up used one day and automate like my Trident.

 

[braaap]

Yeah it’s not Red Sea level of threads being posted but more than a few. I hope they do resolve it though for these people. I would be pretty ticked if I just paid $800 for a tester spitting out zero and support says I’m just supposed to trend it. That can’t be the end of the issue and it probably won’t be.

I bought your Trident and if it was giving me 7 for my alk and all my other tests say 8.5 and support tells me just to trend it, I’m trashing that thing.

I would love to pick one up used one day and automate like my Trident.

I’ve yet to see another thread about it. But I’ve seen 8-10 people here in this one saying they are having issues.

My Trident is very accurate. Within its tolerance. My NP so far 8 days in is literally identical to my Hanna testers.

I’m guessing this is some kind of software glitch. For some reason they are saying not to run manual tests. I’d like to hear why. I ran one manual test and it was identical as well.

I’ll be the first with a pitchfork if Neptune just tells people to kick rocks. But I believe they will figure it out soon.

 

[David_CO]

I think I'm going to pick up a Salifert Po4 kit to have another data point. I really just to rule out my Hanna, though my gut tells me its right. The tank is clearly not at 0, SPS dominant tank with deep rich coloration that I expect at .1, I see things getting pale under .05 on the Hanna. Yeah telling me that it is trending and everything looks good and not appreciating that this range is not useful to most, had me a little miffed considering their claim is Phosphate: +/- 0.01 PPM, +/- 5% of reading. This should put the them with in .02 +/- of the hanna if you consider the Hanna's accuracy.

My goal in all of this is to be able to have confidence to dose P04/NO3 when traveling when needed as I have had 2 bottom outs resulting in dinos, which I am able to clear in 3 days but takes at least a month to recover from and typically loose at least 1 frag.

The salifert phosphate test is really hard to interpret at low levels (as are all the color based eyeball tests imo). Just an fyi before you waste money. IMO the Hanna eggs are the only ones worthwhile comparing to the NP for any meaningful comparison.

My NP has been pretty close compared to the ppb Hanna egg. I had like a 4 day stretch where it read 0 while the Hanna egg read 15ppb, since then it’s read ~0.02-0.03 lower than the Hanna egg.

 

[cubsfan16]

The salifert phosphate test is really hard to interpret at low levels (as are all the color based eyeball tests imo). Just an fyi before you waste money. IMO the Hanna eggs are the only ones worthwhile comparing to the NP for any meaningful comparison.

My NP has been pretty close compared to the ppb Hanna egg. I had like a 4 day stretch where it read 0 while the Hanna egg read 15ppb, since then it’s read ~0.02-0.03 lower than the Hanna egg.

Which Hanna do you have? 736 or 774? Thanks for the heads up on the Salifert....I havent used their PO4 kit.

 

[areefer01]

The salifert phosphate test is really hard to interpret at low levels (as are all the color based eyeball tests imo). Just an fyi before you waste money. IMO the Hanna eggs are the only ones worthwhile comparing to the NP for any meaningful comparison.

That very well could be but the Hanna testers are also prone to human error. At least in my experience I should say. I have been using both the Hanna high range nitrate HI782 and the phosphate low range HI713 for well over 45 contiguous days and the results are interesting. Especially with the HI782 nitrate.

• Shake vigorously
• Empty complete packet
• 10 ml display water
• Sample time consistency
• Battery level

All play a part with the results for manual testing. At least for me. I don't feel too bad as I remember the BRS video with a couple different staff all using the same kits and manual tests. Results varied. I am not saying anything about that content other than manual testing has a human factor that we need to consider especially with Hanna's reagent packs and visual titration change.

This is not in defense of just stating the obvious. With automation we are expecting, and assuming, that things are done the same way. The variance here is, of course, sample area contamination. Did my dosing happen at the time of the scheduled test. ATO kick in? Feeding? Things like this can impact automation and of course software bugs although that should be static now since it has been launched. Oops still can happen...

 

[JeffB418]

While I agree, it wont likely be a flop. I expect it will improve over time. That said, I think the point made was calling good on a range of 0-.1 or higher. I'm also not sure how many are out in the wild quite yet. The sold out in a day on mostly trickles of stock so far.

Yeah I doubt they have come close to manufacturing over 1000 yet. They have been only making a handful a day from what one vendor told me. swa was only getting 10 at a time every week or so, and other big name vendors only got a couple from what I hear.

As for hanna, i actually own 4 774 units, one brand new this week. I use a 10ml pipette to grab the sample. time the mixing period and follow instructions to the t as best I can. most of the units measure the same, 1 unit is slightly off to the high side consistently.

 

[JeffB418]

If they’re calling the difference between .1 and 0 no reason for concern, it kinda feels like this thing is gonna be a flop. I really hope they don’t just shrug their shoulders and say good nuff.

might not be a flop, but not a useful tool for those running sub 0.1 phos tanks

 

[cubsfan16]

So, to complicate things a bit. I have been running monthly ICPs with ATI for the last few months and received my June results this morning. Below are my readings from the last few months with a Hanna taken at the same time. June was the first NP results I had.

PO4
June ICP = .01. NP = .02 Hanna = (the one time i didn't take a hanna however (day before.18 day after .13)
May ICP = .09 Hanna = .15
April ICP = .07 Hanna = .16

I have also heard nutrient results can very with ICP as the sample can be affected over time in transit.....however, results are interesting.