Short version, I want to make a coral garden with sodium silicate and salts, and I would like to put that in my fish tank, but I'm concerned about the fish getting poisoned.
The above pages describe the chemicals needed. The articles say that once the corals have formed, they can be rinsed to remove the sodium silicate, and kept in fresh water. Most of the articles I've read say the same thing, in different ways. But none of them say whether the coral degrades, or if it is stable.
Are there experiments that I can do to test this? How can I be sure?