Phosphorus purchase

[scotty333]

cheers boss

 

[scotty333]

Ramped up my aqua ocean 8000 lph wave makers from pulse to full power see if it helps , on pulse there probably only pumping out 1/4 of full power

 

[scotty333]

It’s water change day!
Will post results after lunch

 

[Randy Holmes-Farley Verified Community Expert]

It’s water change day!
Will post results after lunch

Sounds good!

 

[scotty333]

Didn’t have time do water change yesterday, should do it later tonight

Just checked calcium since it’s been going down and it’s at 300 now!
I can only say it must be skimming out cos there nothing to use it
Kh 10 so that’s going up !

 

[scotty333]

Mag 1500 so also down

 

[Randy Holmes-Farley Verified Community Expert]

Calcium does not skim out. These big ups and downs are likely test issues, not real changes.

 

[scotty333]

Testing is consistent, checked again lfs nsw and Red Sea salt , I get the results as per salt water params

 

[scotty333]

150ltrs of Red Sea salt water prepared (30%)

Results this afternoon, should be interesting, well maybe not but I’ll post them anyway

 

[scotty333]

So
Calcium 315 (in line with the 300 before wc )
Mag 1500
Kh 8.6
Nitrate 50
Po4 .30

 

[Randy Holmes-Farley Verified Community Expert]

I’m getting confused and am fast loosing interest in trying to sort this out. It is not consistent.

On Monday you said calcium was 500 + ppm.

On wednesday you said it was 365 ppm

On Thursday you said it was 350

On Saturday you said it was 300 ppm

 

[scotty333]

Tell me about it , it’s driving me nuts
The calcium is going somewhere but where

 

[Randy Holmes-Farley Verified Community Expert]

Tell me about it , it’s driving me nuts
The calcium is going somewhere but where

Lol

Test error. For calcium to decline by 200 ppm, it MUST consume 28 dKH of alk to make calcium carbonate. There is no other significant sink in seawater.

Since that presumably did not happen, it is test error.

 

[scotty333]

I’ll get it dbl checked at lfs to be sure

 

[scotty333]

Test results today

Salinity 1.025
Kh 9.3
Mag 1500
Calcium 350 ( buffered )
Nitrate 100
Phosphate.20

 

[Randy Holmes-Farley Verified Community Expert]

Buffered means added to you?

On the previous results, it is the Monday result that seems out of line and is most likely in error.

 

[scotty333]

Yeah added Red Sea calcium ( 75ml) which raised it 50

Mondays result was confirmed by lfs, exactly 500+ with I think 2ml gone out a second shrine at 1ml

 

[Randy Holmes-Farley Verified Community Expert]

OK, well I will stand by my comment that the results are test error. There is no possibility that calcium actually dropped from 500+ ppm on Monday to 365 ppm on Wednesday.

 

[scotty333]

It’s one of those life’s mysteries, anyway I’m happy its on track now