Po4 rising fast

[Lavey29]

.31

That's nothing to be concerned with. How about the other questions I asked?

 

[scotty333]

That's nothing to be concerned with. How about the other questions I asked?

Already answered 6.20 pm

 

[Lavey29]

Already answered 6.20 pm

Ok missed it, sounds like common 6 month fluctuations. Phosphate binds in rock and sand and eventually starts leaching back into the water. Sounds like your rocks are full and leaching back. Ow hence the rise is Phosphate even though your program has not changed.

 

[Vested]

Maybe increasing phyto ?
Currently 50ml of microforna and 50ml coral which I know isn’t much

no, test that phyto guarentee the po4 is through the roof. What are these other things your dosing? Are either of these "Currently 50ml of microforna and 50ml coral which I know isn’t much" coral food? Something IS too much, po4 doesn't come from nowhere. Your tank cant handle the input, from what you've said I absolutely would stop dosing "phyto" until your nutrients are under control.

 

[scotty333]

Ok missed it, sounds like common 6 month fluctuations. Phosphate binds in rock and sand and eventually starts leaching back into the water. Sounds like your rocks are full and leaching back. Ow hence the rise is Phosphate even though your program has not changed.

Thanks
If that’s the case it should stabilise at a level eventually then idk?

 

[scotty333]

no, test that phyto guarentee the po4 is through the roof. What are these other things your dosing? Are either of these "Currently 50ml of microforna and 50ml coral which I know isn’t much" coral food? Something IS too much, po4 doesn't come from nowhere. Your tank cant handle the input, from what you've said I absolutely would stop dosing "phyto" until your nutrients are under control.

50ml of 2 phytos, 1 for pods n one for corals
I’ve been dosing for 3 months the same amount , always fresh

 

[scotty333]

Ok missed it, sounds like common 6 month fluctuations. Phosphate binds in rock and sand and eventually starts leaching back into the water. Sounds like your rocks are full and leaching back. Ow hence the rise is Phosphate even though your program has not changed.

The rock and sands 8 years old as previously said

 

[Dburr1014]

Up for some reading? I use garf's method and it works, gently and cheap.

Thread 'Desorbing phosphate from sand with lanthanum.' https://www.reef2reef.com/threads/desorbing-phosphate-from-sand-with-lanthanum.981286/

 

[scotty333]

Up for some reading? I use garf's method and it works, gently and cheap.

Thread 'Desorbing phosphate from sand with lanthanum.' https://www.reef2reef.com/threads/desorbing-phosphate-from-sand-with-lanthanum.981286/

Cheers but Ive already done the lc route, its very good but I don’t have a doser head right now and am seeing if reduced feeds will stop the increase so I can rule that out

 

[Dburr1014]

Cheers but Ive already done the lc route, its very good but I don’t have a doser head right now and am seeing if reduced feeds will stop the increase so I can rule that out

I don't think you read the thread.
You really need to read it. It is NOT lc dosing.
It is desorbing sand using lc. The sand is reducing the po4.

 

[scotty333]

I don't think you read the thread.
You really need to read it. It is NOT lc dosing.
It is desorbing sand using lc. The sand is reducing the po4.

Sorry just had time now to read it, phew!
Lot of work for what will be a few months resaturating the sand with po4 and back to square one

Right now I’m seeing if I reach an equilibrium or it keeps rising
.5 is my limit before intervention then I’ll consider my options as there are many
So on Tuesday I’m either at .47 or less than .31
Let’s see , not doing anything irrationally right now

 

[Dburr1014]

I was at 0.4 and went down to 0.11 in 4~6 weeks.
Every 3 days swapped out the bag for a new one. Every 3 or 4 bags I did fresh lc water.
I stopped when it hit 0.11, now it climbed back to 0.18 and I started again. This time I'll do 1 bag a week to hold the number.

This method works and it's extremely cheap and gentle on coral, unlike like gfo.

 

[Randy Holmes-Farley]

The last few days it’s rising .8 a day with even reducing the food

I presume that is a typo? How much is it actually rising?

 

[scotty333]

I was at 0.4 and went down to 0.11 in 4~6 weeks.
Every 3 days swapped out the bag for a new one. Every 3 or 4 bags I did fresh lc water.
I stopped when it hit 0.11, now it climbed back to 0.18 and I started again. This time I'll do 1 bag a week to hold the number.

This method works and it's extremely cheap and gentle on coral, unlike like gfo.

What I don’t get from that thread is that the sole problem is focused on the sand , now if you have 50kg of rock and 3-4kg of sand how can rinsing the sand of po4 solve the problem when the rock (if this is the case will have 10x the po4 than the sand ?)

I’ll go into a bit more detail to explain the theory that this is not my problem

The tanks 8 year old , I reset 6 months ago and went from using gfo for months on a timer so I wasn’t ripping the phos to 0 and rising up again when it was off

So, I started dosing LC and the control was spot on , less than .02 shifts a day

When I hit month 4-5 the po4 bottomed out and had to control po4 with daily feeds

Hit month 6 ( 2 weeks ago) and I’m climbing .08 a day

So, I just don’t see it’s the sand or rock absorbing and leaching over and over

Hope this makes more sense ??

 

[scotty333]

I presume that is a typo? How much is it actually rising?

Sorry yes .08
Hi boss, great to have you here

 

[Randy Holmes-Farley]

Already answered 6.20 pm

Is that literally an answer to the current phosphate level? Or something else?

If so, I suspect a testing issue.

 

[Dburr1014]

You know how it works. Sand absorbs from water, lc releases it in a bucket. Rocks unbind in the aquarium to equalize. Rinse and repeat.
Absolutely you need to control what goes in for feed.

 

[scotty333]

Is that literally an answer to the current phosphate level? Or something else?

If so, I suspect a testing issue.

It was a reply to the post asking about my stocking etc from lavey

 

[scotty333]

You know how it works. Sand absorbs from water, lc releases it in a bucket. Rocks unbind in the aquarium to equalize. Rinse and repeat.
Absolutely you need to control what goes in for feed.

Yeah I get it thanks

 

[Randy Holmes-Farley]

It was a reply to the post asking about my stocking etc from lavey

What does the 6.2 pm mean?