FWIW, without dosing any, my bromide hovered at almost twice the NSW levels.
I'd be skeptical of any immediate "positive" response (e.g., within minutes) to a chemical that isn't a food or "tastes" like a food to corals. Any actual effect on corals in reef aquaria might be indirect, with organisms that use more of it altering the water chemistry with they bodies and/or their excretions.
IMO, maintaining NSW levels seems a reasonable plan.
Bromide is often used or sometimes accidentally incorporated into organic molecules.
Here's a nice summary from wikipedia:
https://en.wikipedia.org/wiki/Organobromine_compound#Organobromine_compounds_in_nature
Organobromine compounds are the most common organohalides in nature. Even though the concentration of bromide is only 0.3% of that for chloride in sea water, organobromine compounds are more prevalent in marine organisms than organochlorine derivatives. Their abundance reflects the easy oxidation of bromide to the equivalent of Br+, a potent electrophile. The enzyme
bromoperoxidase catalyzes this reaction.
[8] The oceans are estimated to release 1–2 million tons of bromoform and 56,000 tons of bromomethane annually.
[9] Red algae, such as the edible
Asparagopsis taxiformis, eaten in Hawaii as "limu kohu", concentrate organobromine and organoiodine compounds in "vesicle cells"; 95% of the essential volatile oil of
Asparagopsis, prepared by drying the seaweed in a vacuum and condensing using dry ice, is organohalogen compounds, of which
bromoform comprises 80% by weight.
[10] Bromoform, produced by several algae, is a known toxin, though the small amounts present in edible algae do not appear to pose human harm.
[11] Some of these organobromine compounds are employed in a form of interspecies "chemical warfare." 5-Bromouracil and 3-Bromo-tyrosine have been identified in human white blood cells as products of
myeloperoxidase-induced halogenation on invading pathogens.
[12]
....... no Brand type 99% RODI elements !!!
