Unknown Phosphate level with Hanna Checker ULR

[KStatefan]

Question on your dilution water if you used the new saltwater that you said "New SW mix. 0.23" you need to use that in your math.

I might have misunderstood something so if so ignore the question.

 

[Dan_P]

The tank has been running for 7 years now, I am not sure how to introduce algae into the tank, I have only been running corals in for 2 months now, it usually is a clown tank. 2 at the most.

OK thanks.

Sounds like the introduction of coral has also introduced algae. Great!

 

[Blue Spot Octopus]

Dan_P Ok I understand what you mean by introducing phosphate, about a month ago I cleaned the interior glass because it was covered in algae, I did a bunch of WC but that must have been the spike, since then no algae on the glass, so it must be suspended.
So it will be a process hopefully slow and steady, but at least I NOW have a starting point.

 

[Blue Spot Octopus]

Question on your dilution water if you used the new saltwater that you said "New SW mix. 0.23" you need to use that in your math.

I might have misunderstood something so if so ignore the question.

I tested my DT water, the new SW mix and the RO/DI, they all have phosphate in them, I have added to a 7 stage RO/DI and going with BRS Pro version, so all filters new from the last 3 months.

 

[92Miata]

Thats what I was going to say, lol.
This will tell you if the unit is working properly. They sell vials that will test the checker to see if its working and in range.
View attachment 3019512

That's the wrong reference sample for his meter, and it will only tell you if the meter is good - it won't tell you if the reagent is.

He needs HI774-11


Water changes don't appreciably affect phosphate levels, unless you're doing a TON of them (like 100%, every day). The vast majority of phosphate is bound to aragonite surfaces, and just gets released when you do a water change.

 

[Blue Spot Octopus]

92Miata, I tried using a very little Rowa Phos and it is a PITA to use, so I will use Chemi-Pure Elite, I need to figure out the correct amount, I used 1.75 ounces or
.49 gram, the nano pooches are 22g each so I will try that amount, I have been using chemo_pure blue nano.

 

[92Miata]

92Miata, I tried using a very little Rowa Phos and it is a PITA to use, so I will use Chemi-Pure Elite, I need to figure out the correct amount, I used 1.75 ounces or
.49 gram, the nano pooches are 22g each so I will try that amount, I have been using chemo_pure blue nano.

Rowa is a pain, IMO. It's really aggressive and tough to control. My usual method of going after phosphates is carbon and nitrogen dosing and just letting it slowly come down. My tanks are always lots of flow and a big skimmer though - so if phosphates are high, it's usually because something (nitrogen, carbon) else is limiting.

 

[Court_Appointed_Hypeman]

Definitely make sure you have the correct model reagent.

There are 2 different reagent models for the hannah ULR and you might have the wrong one.

 

[Blue Spot Octopus]

I have the correct reagents and they are brand new.
7 gallon tank so I cannot get skimmer in there and carbon dosing probably would be difficult, I simply have live rock and a Fluval Aqua Clear, I did re arrange the filter floss and Chemo- pure blue nano so the water has to flow through it.
Once I figure out the correct amount I will use Chema-pure Elite. Probably around 22 grams to start.