I mix wheatgrass, barleygrass, maca powder, spirulina, chlorella, psyllium husk and scai berry with carrot and apple juice every morning, is it good?

Nothing wrong. There is no concern about any of the ingredients you mention. Am not sure whether to say it is "good" since other unprocessed foods are probably as good. It is an interesting combination of ingredients. I presume you did some research before choosing them? If you feel it helps you then there is no reason that i know of not to continue with it.