Quetions in Strontium and fluoride

calk me Q

New member
Currently im making artificial seawater(hope to cut off extra expense) and got the receipt from Frank Millero

Bellow:

23.98 g sodium chloride
5.029 g magnesium chloride
4.01 g sodium sulfate
1.14 g calcium chloride
0.699 g potassium chloride
0.172 g sodium bicarbonate
0.100 g potassium bromide
0.0254 g boric acid
0.0143 g strontium chloride
0.0029 g sodium fluoride

Water to 1 kg total weight.

Can somebody have a description for the funtion or any essence in the last two chemicals. I really found their content are minimal and micro.

At the moment, i have made myself a bucket of seawater with all the aforementioned chemicals except last two, the corals i put in the bucket seems to be OK for 3 days. So thats why it intrigues me.

Thx for any comments
 
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