Storing additives in sunlight

[ianryd]

Is there any problem with keeping pre-mixed liquid 2 part additives (alk, cal, mag)in clear bottles in direct sunlight? I just noticed mine get a few hours of sunlight a day on the shelf where I keep them.

 

[Randy Holmes-Farley Verified Community Expert]

Is there any problem with keeping pre-mixed liquid 2 part additives (alk, cal, mag)in clear bottles in direct sunlight? I just noticed mine get a few hours of sunlight a day on the shelf where I keep them.

Those additives are fine.

Some trace elements (e.g., iron) may more rapidly oxidize and become less soluble in direct sunlight.