Hey Alex,
How did you find this? Its a interesting product but comes with a risk. Looks like its just another version of metal based Zooxanthellae reducing agent. As the Acro Al says with overdose it can harm corals like other copper based agents. Also, they dont disclose whats in the bottle just say specific elements. Now when you dose something like that then there is a risk of build up of some specific element and specially if its copper then I don't think it will be wise. I think zeospur work in similar manner too.