A easy way to add calcium that is essential
Great product but i get the hard chunks and use a old grinder to make it more water soluble I mix with flower top dress and craft blend and vegan flower mix to be sure they get all nutrients and bio phos. Every two weeks! and then clean ro/ di water at 6.2 ph in my outopot tank that feed the tray to grow with rootwise fabric pots. Dynomyco and spark in veg with rootwise microbes for the hell of it with some fungi that helps prevent pm along with insect frass in the mix



