It is not uncommon for this to happen (a scientific work in an online library, change the address), but if you copy and paste the paper title into Google, the new link will appear.Link does not work for me ?
Regards
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It is not uncommon for this to happen (a scientific work in an online library, change the address), but if you copy and paste the paper title into Google, the new link will appear.Link does not work for me ?
@Randy Holmes-Farley , @Jose MayoAnother good work, also focused on the algae / coral interaction, in which the evidence points to poor results, is in the link below:
Excess labile carbon promotes the expression of virulence factors in coral reef bacterioplankton
Regards
So far we have only thought that carbon dosage would only cause bacteria to multiply, and by their multiplication and consequent consumption of nutrients, especially nitrate, would help us to export these nutrients from the aquarium with the help of the skimmer ... in fact seemed to be a good idea (and within certain limits it certainly is), but more recent evidence seems to associate an implicit risk to this practice, which would be the conversion of commensal bacteria, present in coral holobionts, into pathogenic bacteria.@Randy Holmes-Farley , @Jose Mayo
It says the carbon produced by the algae could cause issues. Wouldn’t carbon dosing cause a similar problem?
So far we have only thought that carbon dosage would only cause bacteria to multiply, and by their multiplication and consequent consumption of nutrients, especially nitrate, would help us to export these nutrients from the aquarium with the help of the skimmer ... in fact seemed to be a good idea (and within certain limits it certainly is), but more recent evidence seems to associate an implicit risk to this practice, which would be the conversion of commensal bacteria, present in coral holobionts, into pathogenic bacteria.
Regards
No, it's not. "Redfield ratio" only tells us the proportion of carbon, nitrate and phosphate in the homogenized bodies of plankton, but it has no relation to the concentrations of these same nutrients in the environment in which this plankton was generated. The focus on this ratio is just an ancient myth of aquarism, which is occasionally unearthed.I suppose that following the redfield ratio in terms of carbon is a safe bet?
And could different carbon sources have different effects on corals.
Looking at DOC. Do we know anything about the dissolved carbon in free oceanic water or at the coral reefs.
Triton is now coming with a test for DOC but is there information about the natural levels?
Looking at DOC. Do we know anything about the dissolved carbon in free oceanic water or at the coral reefs.
Triton is now coming with a test for DOC but is there information about the natural levels?
Perhaps a poll on carbon dosing vs. no carbon dosing and coral health. Perhaps by presence of STN or RTN?
Having read the papers provided, they dont really provide an insight into real world aquarium reef only study findings, that by their nature attempt to remove as many variables as possible. Studies do not always equate a 1:1 realization in ecology. Ie super saccharin doses cause cancer in rats but not humans. It does make sense there is a negative when DOC reaches a certain level. Though a hobbyist has no way to verify the level, at least there is no test i am aware of aimed at that market.
But reading through vibrant threads you do see some negative effects when dosed heavily. Even bacteria supplements themselves state dosing instructions, That err on the side of caution.
Are there any studies equating TDS measurements to amount of DOC? If so perhaps a simple TDS meter could help an aquarist find their tank’s “sweet spot”?
I cannot express to you how misunderstood this concept is. The ratio is spreading like wildfire in knee jerking ways. From youtubers adding it to their videos and now BRS promoting it.No, it's not. "Redfield ratio" only tells us the proportion of carbon, nitrate and phosphate in the homogenized bodies of plankton, but it has no relation to the concentrations of these same nutrients in the environment in which this plankton was generated. The focus on this ratio is just an ancient myth of aquarism, which is occasionally unearthed.
Once there are measurable nutrients in any proportion, what may limit the growth of this or that organism that may use them is the depletion of other micronutrients, consumed in the same growth process, that can not be measured, such as trace elements.
And, yes, different carbon sources are likely to have different effects on the coral ecosystem, especially on bacterioplankton.
Regards
Instead of dosing ethanol, use a large algae refugium, if you have the room. Or do you feel it’s not as efficient?Triton lab's big thing this years on Interzoo was a test for DOC. I haven't seen any starting date yet, but it will be really interesting to test. We run about 10 different aquaria systems at work, so it will be fun to see the variation.
I noticed Brown Jelly Disease comes more often in one of our systems, specially after I've vacuumed the sand. In this system we dose a lot of ethanol(high bioload). I can't not say there is a connection, but I get the feeling that it might be the case. Anyway a DOC tests maybe could tell at least if it was high or low, and it would be possible to adjust dosings and see if there were any differences.
/ David
This is one of the better explanations I've heard on this. I never felt the RR was something that was "across the board" because it is a result of an experiment in controlled laboratory conditions. Everyone's tank is different, and the dynamics of a closed reef system are not comparable to lab conditions.No, it's not. "Redfield ratio" only tells us the proportion of carbon, nitrate and phosphate in the homogenized bodies of plankton, but it has no relation to the concentrations of these same nutrients in the environment in which this plankton was generated. The focus on this ratio is just an ancient myth of aquarism, which is occasionally unearthed.
Once there are measurable nutrients in any proportion, what may limit the growth of this or that organism that may use them is the depletion of other micronutrients, consumed in the same growth process, that can not be measured, such as trace elements.
I wholeheartedly agree!I cannot express to you how misunderstood this concept is. The ratio is spreading like wildfire in knee jerking ways. From youtubers adding it to their videos and now BRS promoting it.
Instead of dosing ethanol, use a large algae refugium, if you have the room. Or do you feel it’s not as efficient?
For refugium the time it takes to start working properly and space too. MHOInstead of dosing ethanol, use a large algae refugium, if you have the room. Or do you feel it’s not as efficient?