Aquaforest Comp B. Concentrated Heavy Metals

[Scrubber_steve]

A.F. balling method includes trace elements, including one product Components B concentrated heavy metals.
They are the following -
cobalt,
copper,
chrome,
nickel,
manganese
vanadium,
zinc,
iron.

Algae assimilate manganese, vanadium, zinc & iron, & replacing those is understandable.
But what purpose does cobalt, copper, chrome & nickel play in the health of corals?
Are they necessary for anything?
How high above NSW levels do they need to be before becoming toxic to corals?


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[Flippers4pups]

A.F. balling method includes trace elements, including one product Components B concentrated heavy metals.
They are the following -
cobalt,
copper,
chrome,
nickel,
manganese
vanadium,
zinc,
iron.

Algae assimilate manganese, vanadium, zinc & iron, & replacing those is understandable.
But what purpose does cobalt, copper, chrome & nickel play in the health of corals?
Are they necessary for anything?
How high above NSW levels do they need to be before becoming toxic to corals?


.

I would think that the amounts of them in solution would have to be calculated so as when properly dosed, they wouldn't become toxic. Good question though.

Ive seen pretty much the same group of heavy metals listed in Kent essentials.

 

[Scrubber_steve]

I would think that the amounts of them in solution would have to be calculated so as when properly dosed, they wouldn't become toxic. Good question though.

Ive seen pretty much the same group of heavy metals listed in Kent essentials.

Its the copper & chrome in particular that I wonder about.

 

[Flippers4pups]

Its the copper & chrome in particular that I wonder about.

Copper is in NSW. Randy spoke about this once, cant remeber exactly, but its the type of copper thats not toxic naturally found.

 

[Indiana Reefin]

I am worried about the zinc as well. I asked this question in another thread. I was about to start dosing all 4 of these components but when I saw the heavy metals I started hyperventilating lol

 

[Scrubber_steve]

Copper is in NSW. Randy spoke about this once, cant remeber exactly, but its the type of copper thats not toxic naturally found.

Non toxic copper? I'll have to research, thanks

 

[Flippers4pups]

Non toxic copper? I'll have to research, thanks

Well, less toxic in nature. Corals do uptake some very small amount of copper.

 

[Scrubber_steve]

I am worried about the zinc as well. I asked this question in another thread. I was about to start dosing all 4 of these components but when I saw the heavy metals I started hyperventilating lol

If I remember correctly @Dana Riddle suggested zinc could detoxify oxygen radicals produced by increased coral photosynthesis via high alkalinity?

Free Radicals and Reactive Oxygen
A radical (often, but unnecessarily called a free radical) is an atom or group of atoms that have one or more unpaired electrons. Radicals can have positive, negative or neutral charge. They are formed as necessary intermediates in a variety of normal biochemical reactions, but when generated in excess or not appropriately controlled, radicals can wreak havoc on a broad range of macromolecules. A prominent feature of radicals is that they have extremely high chemical reactivity, which explains not only their normal biological activities, but how they inflict damage on cells.

Oxygen Radicals
There are many types of radicals, but those of most concern in biological systems are derived from oxygen, and known collectively as reactive oxygen species. Oxygen has two unpaired electrons in separate orbitals in its outer shell. This electronic structure makes oxygen especially susceptible to radical formation.

 

[Scrubber_steve]

any thoughts on this @glennf
your salt mix states "Features: Pure salts with zero heavy metals *"


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[Land Shark]

According to Triton test results, these are the setpoints:
Cobalt 0.1 ug/l
Copper 0.1 ug/l
Chromium 0.1 ug/l
Nickel 5 µg/l
Zinc 4 µg/l

Triton test results also show that a reading of 0 ug/l is perfectly acceptable for all of them.

 

[Scrubber_steve]

According to Triton test results, these are the setpoints:
Cobalt 0.1 ug/l
Copper 0.1 ug/l
Chromium 0.1 ug/l
Nickel 5 µg/l
Zinc 4 µg/l

Triton test results also show that a reading of 0 ug/l is perfectly acceptable for all of them.

seawater contains every element on the periodic table, but quite a few are totally unnecessary for a reef aquarium no doubt.

 

[Indiana Reefin]

It would be nice to hear from @Aquaforest

 

[Scrubber_steve]

It would be nice to hear from @Aquaforest

not really, they'd just promote their product. RHF input would be prefered.

 

[Indiana Reefin]

not really, they'd just promote their product. RHF input would be prefered.

I want to know why they bother with these heavy metals

 

[Scrubber_steve]

I want to know why they bother with these heavy metals

Fair enough. You could try asking here also Component B Strong

 

[Indiana Reefin]

Fair enough. You could try asking here also Component B Strong

Looks like I will be dropping aquaforest

 

[Coralsea_co]

A.F. balling method includes trace elements, including one product Components B concentrated heavy metals.
They are the following -
cobalt,
copper,
chrome,
nickel,
manganese
vanadium,
zinc,
iron.

Algae assimilate manganese, vanadium, zinc & iron, & replacing those is understandable.
But what purpose does cobalt, copper, chrome & nickel play in the health of corals?
Are they necessary for anything?
How high above NSW levels do they need to be before becoming toxic to corals?


.

Here, I invite you to read the beautiful article by Mr. Hans Werner Balling.
https://www.researchgate.net/public...tions_sinks_and_replenishment_in_reef_aquaria
Really nice article!
Special thanks to Mr. Hans Werner Balling et al.

 

[Scrubber_steve]

Here, I invite you to read the beautiful article by Mr. Hans Werner Balling.
https://www.researchgate.net/public...tions_sinks_and_replenishment_in_reef_aquaria
Really nice article!
Special thanks to Mr. Hans Werner Balling et al.

very informative article. Interested in what @Randy Holmes-Farley would have to say regarding Table 1.

Not enough info on effects of excessive levels of heavy trace metals

 

[Randy Holmes-Farley]

I’m traveling now and can’t provide links and such, but those trace elements are used by many organisms, likely including corals. Exact values for need or tox are not possible because it depends strongly on the oxidation state (eg ferrous vs ferric iron) and the extent and type of organic chelation.

 

[Coralsea_co]

very informative article. Interested in what @Randy Holmes-Farley would have to say regarding Table 1.

Not enough info on effects of excessive levels of heavy trace metals

It is true....
Thanks to Randy Holmes-Farley.
An example of a research on the toxicity of zinc :
https://peerj.com/preprints/2858/