Po4 rising fast

[scotty333]

What does the 6.2 pm mean?

6.20pm post meridian, the time I replied

 

[scotty333]

Here’s another angle to explore

What events occur that rock and sand unbind ?
I believe bottoming out can cause that but if you don’t bottom out then why?

 

[Randy Holmes-Farley Verified Community Expert]

6.20pm post meridian, the time I replied

lol OK. Never once heard that term before.

 

[Randy Holmes-Farley Verified Community Expert]

Here’s another angle to explore

What events occur that rock and sand unbind ?
I believe bottoming out can cause that but if you don’t bottom out then why?

Lower pH in the sand.

 

[scotty333]

lol OK. Never once heard that term before.

For once I taught you something!

 

[scotty333]

Lower pH in the sand.

Hmm how do I test that then? Tanks reading 8.3

 

[scotty333]

Oops

 

[Reefering1]

For once I taught you something!

Idk. Sounds like you simply wrote the time wrong. 6.2pm vs 6:20pm. Makes a difference when your talking to a chemist

 

[Dburr1014]

Here’s another angle to explore

What events occur that rock and sand unbind ?
I believe bottoming out can cause that but if you don’t bottom out then why?

Just the fact the water column is lower than rock/sand will unbind some.

 

[scotty333]

Idk. Sounds like you simply wrote the time wrong. 6.2pm vs 6:20pm. Makes a difference when your talking to a chemist

Thing is I didn’t write 6.2pm but 6.20pm , double check please

 

[scotty333]

Just the fact the water column is lower than rock/sand will unbind some.

Good answer , like it

 

[Reefering1]

Thing is I didn’t write 6.2pm but 6.20pm , double check please

My mistake but Same difference, "." Rather than ":". Not really a big deal but could look like .62ppm. Typos happen, and it could look like one

 

[scotty333]

My mistake but Same difference, "." Rather than ":". Not really a big deal but could look like .62ppm. Typos happen, and it could look like one

Let it go f f s haha
Back to the topic yes

 

[scotty333]

Just the fact the water column is lower than rock/sand will unbind some.

So, does the rock / sand have a max limit it can absorb ?
I see some of the tanks with high po4 are high but stable
As I said , I want an intervention number and that’s .5
Could it go higher ? Who knows ??

 

[Lavey29]

So, does the rock / sand have a max limit it can absorb ?
I see some of the tanks with high po4 are high but stable
As I said , I want an intervention number and that’s .5
Could it go higher ? Who knows ??

I experimented with mine thinking the rocks would reach a phosphate equilibrium point with maxed out binding and controlled leaching back and my phosphate would settle in a specific range. This did not happen for me. It just kept steadily rising. Now dosing LC eventually drains all the phosphate out of the rocks and my number would be low and controlled again for many months until the rocks get saturated again.

 

[scotty333]

I experimented with mine thinking the rocks would reach a phosphate equilibrium point with maxed out binding and controlled leaching back and my phosphate would settle in a specific range. This did not happen for me. It just kept steadily rising. Now dosing LC eventually drains all the phosphate out of the rocks and my number would be low and controlled again for many months until the rocks get saturated again.

Seems like my situation will be the same
Thanks very much , I’m more prepared now

 

[scotty333]

.41 today so up .11 in 2 days with reduced feeding that’s .055 pd
Gonna put the LC on my doser set at 8ml ( diluted 50%)

 

[Vested]

.41 today so up .11 in 2 days with reduced feeding that’s .055 pd
Gonna put the LC on my doser set at 8ml ( diluted 50%)

If that isn't a testing error that is extreme, did you stop the phyto?

 

[scotty333]

Not a test error it’s would be .04 without any food
I just pour 50ml of phyto in as usual , trying to keep everything the same
Phyto should reduce no

 

[VintageReefer]

You need something to absorb the phosphate from the water - sand, gfo, Phosguard - then the rock and sand will leach it back out into the water. Then you absorb that. Then it unbinds more. Over and over and over. Until the rock levels are significantly lower, and a new lower equilibrium is created. Controlled feeding important also so you don’t undo your hard work. This process can take weeks or months

You could get an algae scrubber and it will work for you safely, 18 hours a day, and there’s no media to replace. Just toss algae every 10 days

You could get a reactor and dump in rowaphos and replace it every few days.

You could try stopping phyto for a week or two to see the impact