I'd be very, very surprised if they didn't buy a commercial trace element mix.
Based on my little business experience, I imagine the following:
1. Brands like Tropica buy individual chelated micros from fertilizer manufacturers for farmers, and blend them into their branded solutions.
2. Brands known as fertilizer manufacturers for farmers do not produce any compounds at all but purchase them from various manufacturers of chemicals, blend and re-pack them, and sell as their own. That's all those Made in Canada, Made in Norway, Made in the Netherlands, etc. But in fact ...
... 3. All manufacturers of simple chemicals, incl. chelated metals, are in China and India. Very few exceptions. (The situation looks very differently in the field of advanced, esp. organic chemicals. I imagine the Russians have had to realize it quite vividly, recently.)
Answer the question. Do modern led lights (rich in the blue spectrum) break down dtpa cleated Fe)
A simple yes or no will suffice
In nature, the halftime of EDTA degradation is estimated at four weeks.
You can say YES to any simple question like this one. These chelated complexes always break down, somehow. Strong UV can break them pretty quickly. How strong? Test for yourself and be blessed.
🙂
or having pollen flying in through an open window and enter the tank… I often wonder if it wouldn’t be way more interesting to investigate the effects of all the compounds we take on as collateral in relative super excessive amounts such as sulphate (SO4) or Chloride (Cl)…
I'm using solely RO+DI water and never bother with molybdenum and nickel. Like you suggested, pollen is enough. Fish food, dust, impurities in chemicals add the rest. Tap water is usually full of micros, with the exception of iron (and manganese) which are removed by water processing companies.
My favourite argument: Nobody doses cobalt, right? And yet we face cyanobacteria more often than we like, in our tanks as well as in natural waters. For cyanobacteria, cobalt is an essential element. Quite rare element, actually.
Also, no one really ever talks about Si or Na
I do. I dose them experimentally for years. No tangible results to report about. I'm quite sorry for that. I'd love to discover SOMETHING BIG.
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