Biobizz alg a mic changing colour

[Smokingjallday]

Hello everyone have a biobizz algamic bottle only about 2 months old was a nice green color but recently it looks darker brown looking colour is it fine to use it still or should i return it

 

[bad dragon bzzz]

i use biobizz nutes,and decant them into smaller bottles.keep the big bottle in the dark.when id get to a dribble in the arse it can be brownish.....as the algamic is full of seaweed/chrolofil just like other was once growing green stuff.exposure to light n air will cause it.
i assume they be ok to use,but in reality i have no idea
good luck n keep er lit

 

[Smokingjallday]

Thanks it could be the air i think ill keep using it anyway