ok- only thing left is to empty tank completely and soak rock in acid- phophates still 0.90

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Thaxxx

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If you remove all your rock and you are bare bottom, you'll need to cycle the tank.
Also dosing 30mls a day for your tank could affect any Tangs you might have. Especially Yellows.
They have a bad reaction to too much LC.
 

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It’s your choice you can get it out. Put you’ll need to be patient. Weeks of dosing. If you swap the rock and do a water change it will speed the process up but you’ll creating other problems
 

2Wheelsonly

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I hate when people suggest water changes, rarely do they work in terms of lowering nutrients. I have been sitting at 25-50 nitrates (can't tell as test kits are trash past 25) for almost a year now and have done literally 300% water changes over the course of one week (yeah I know, not healthy but stopped caring what lives or doesn't at this point) and not a single dent was made to my nutrient levels.

If it's in your rocks, it's in your rocks.
 
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I hate when people suggest water changes, rarely do they work in terms of lowering nutrients. I have been sitting at 25-50 nitrates (can't tell as test kits are trash past 25) for almost a year now and have done literally 300% water changes over the course of one week (yeah I know, not healthy but stopped caring what lives or doesn't at this point) and not a single dent was made to my nutrient levels.

If it's in your rocks, it's in your rocks.
So the water changes are a waste of time ?
 

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If you have that much phosphate bound in your rocks then it won’t be the most effecting. LC and GFO will be your best choice
 

14 foot reef

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what's your PO4 test on your water change water ? ... I did NOT read the entire thread, the parts I read seem scientifically impossible
 
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schuby

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Did you remove 90 gallons and then added 90 gallons? That would lower PO4 by 1/3. If you started at 3ppm, might be less than 0.9. If you started at 100ppm, then should lower to 66ppm.
 

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I'm thinking a whole other order of magnitude may be necessary here. Try 100:1 and see what you get.
Quite possible! Would certainly help to at least get a rough idea where it is currently.

So I guess next question.. If you dilute the sample that much with RODI does the test still work? Maybe need to use fresh mixed salt water instead???
 

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I am going to be Dripping LC for weeks.. at 9mls ro/di and 1ml sample water the hanna ULR is still 0.9
Have you tried diluting further? Take the first dilution 1:9. Then take 1ml of that with another 9ml rodi. X100 on the Hanna result

maybe your Hanna is giving a false reading as Randy mentioned? Might be worth taking a tank sample and let it settle for a while if the tank is cloudy
 
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Have you tried diluting further? Take the first dilution 1:9. Then take 1ml of that with another 9ml rodi. X100 on the Hanna result

maybe your Hanna is giving a false reading as Randy mentioned? Might be worth taking a tank sample and let it settle for a while if the tank is cloudy
Hanna is accurate, my other tank is 0.06ppm
 
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