Zinc

we are outdoors so different temps and cloud coverage, bright sun all come into play..the higher the par the higher the ph

On a side note Jason your orp is way low, you could add more media to feed your bacteria, also low orp is a good indication its time to change carbon...
 
Last edited:
Spslvr said:
we are outdoors so different temps and cloud coverage, bright sun all come into play..the higher the par the higher the ph

On a side note Jason your orp is way low, you could add more media to feed your bacteria, also low orp is a good indication its time to change carbon...
Click to expand...
That's normal orp for me. With out ozone its under 200. I don't run very much ozone though. Very little actually. Don't need much. I'm not so concerned with the ORP value itself which I don't even know how accurate it is.

I dose around 100ml/day of acetic acid and don't like to go higher as it causes to much bacterial mulm. Nitrates and phosphates are well with in my target ranges at that dosage.
 
Interesting numbers so far spslvr. Bulk Reef Supply did an update video on their 160 gallon tank. Their pH was always in the 7.8 range so they added a CO2 scrubbing media and it bumped the pH up to the 8.2 to 8.4 range IIRC. Their Alk and Ca dosage had to be doubled to keep up with intake.

Maybe this already known by most in here but it all supports the faster growth with higher pH theory...
 
rtparty said:
Interesting numbers so far spslvr. Bulk Reef Supply did an update video on their 160 gallon tank. Their pH was always in the 7.8 range so they added a CO2 scrubbing media and it bumped the pH up to the 8.2 to 8.4 range IIRC. Their Alk and Ca dosage had to be doubled to keep up with intake.

Maybe this already known by most in here but it all supports the faster growth with higher pH theory...
Click to expand...

that's actually the theory behind electrolysis...
 
Wow, a lot of "new data" in this thread from the farm. Anxiously waiting for that paper....

Spslvr the so big alk swings , without detrimental effects on SP's, is also something g very new. Where do you attribute, the tolerance of your sps , to all swings? Also why can't you keep it more stable?


Dana Riddle, in his macna 2016/talk, https://m.youtube.com/watch?v=fBktpJ3umAs, said that lower light, increased photosynthesis , on porites coral. Did you ever consider , to shade some of your vats, to promote growth ,instead of coloration?
 
We have shaded our systems in the past, the alk swings are based on demand and doesnt seem to effect them idk why..... mabe the metals.... thats what we are looking into could be the higher nutrient, combined with higher metals and ph....
 
Do you think that perhaps your specimens have, for whatever reason, perhaps artificial selective pressure from being in your facility for many generations, that makes them much more hearty than your average frag or wild specimen?

So maybe your strains do well under these conditions in your facility, but most corals would not?
 
blanden.adam said:
Do you think that perhaps your specimens have, for whatever reason, perhaps artificial selective pressure from being in your facility for many generations, that makes them much more hearty than your average frag or wild specimen?

So maybe your strains do well under these conditions in your facility, but most corals would not?
Click to expand...

Good point, i can say that our frags and mother stock are hardy and our frags seem to do very well in the average reeftank, we do also collect and supply wild stock which sits in our systems for up to a week before packing out....
 
@Spslvr
Are you use a natural sea water for your system ?

What are the doses you make Mn, Zn and Cu to elevate their at such high levels ?
How fast is this happening ?

Do you make water changes on a regular basis ?
 
Nsw changed at 50% per week, christian posted dosage rates a couple of pages back and theres a bit of info on the farm thread aswell
 
Then I do not understand anything.
For your system 11 tone, you take 5.5 tons of water, then add Zn to 450 ppb, Mn to 980 ppb, Cu to 350 ppb, right ?
Wherefore do you do daily dosing Zn-0,6 ppb, Mn-1,78ppb, Cu-0,48ppb ???
Such meager doses can not possibly affect to such huge concentrations of these elements in your system.
 
For example, if the manganese level you have 980, your system uses 1.78, a week later it will be 967.5, and after replacement of 50% it will be 973.75.
I do not think that corals will notice the difference 980 - 974.
 
SergeyL said:
For example, if the manganese level you have 980, your system uses 1.78, a week later it will be 967.5, and after replacement of 50% it will be 973.75.
I do not think that corals will notice the difference 980 - 974.
Click to expand...

Serge,

Nick must of had a big night....

We have two facility's one at Barry street cairns and the other is on my property

The Barry street factory has a few systems for the mother corals at all different levels which gets the water changes

The one on my property is where i do the trace metals dosing this system has not had a water change in 5 weeks now because the additional trace elements this is for the research paper we are working

I am strong believer in water changes and always have been but since working with the trace elements i see a big difference in coral health and the zooxanthella more PE and growth

Chris


Sustainable Reefs Cairns Australia.
https://m.facebook.com/sustainablereef
 
blanden.adam said:
Do you think that perhaps your specimens have, for whatever reason, perhaps artificial selective pressure from being in your facility for many generations, that makes them much more hearty than your average frag or wild specimen?

So maybe your strains do well under these conditions in your facility, but most corals would not?
Click to expand...

We ship out a lot of wild stock per week
Here in Oz and over seas wild stock will sit in the tanks what are linked to the main system we have had now issues with this i think 80% of biggles corals are ours


Sustainable Reefs Cairns Australia.
https://m.facebook.com/sustainablereef
 
Do you believe there is there a link between the coral's ability (need even) to metabolize the metals and the fact that your system is so high energy with all of that light and nutrients?
 
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