FAQ: Is Seachem Flourish Glue™ toxic or harmful to fish, plants, shrimp, or snails?

Flourish Glue™ is nontoxic and will not harm any tank inhabitant merely by being placed in the water, but it is still glue.  If a fish or invertebrate attempts to eat Flourish Glue™ before it has set up, it may stick to their mouth or teeth and be very difficult to remove.  Keep fish away from the glue until it has completely set.