Never tried it before, just opened up my first bottle, and when I poured it into a jug of water, some of it dissolved, but some of it stuck together with the globular consistency of egg-drop soup. Is it supposed to do that?
I'd use the floralicious plus (mostly kelp extract) if you already have it, but in the future I'd replace it with a good clean kelp extract, like Age Old Kelp or Neptune's Harvest kelp-both of those test below detectable limits for arsenic, which can be a major problem with kelp.