CalMag Pro turned yellow... is this bad?

[elcoloan]

Morning friends!
I Usually prepare a very conecntrated solution of Cal Mag Pro and keep it stored in a dark bottle in a dark cool place and just take out bits of it as i need it. Today I changed that solution into a bigger bottle but this one is clear which allows me to see the color... and I don't remember it being like this before, could swear it was clear... but it has a yellow or green color to it now... Is this normal? should I stop using it?

Here is a pic of it:

 

[Green Hornet]

Looks like the Cal-Mag that I just poured into a teaspoon for my plants maybe a little lighter

 

[elcoloan]

Looks like the Cal-Mag that I just poured into a teaspoon for my plants maybe a little lighter

THANKS!