What spot in your house has more chemicals in one place than any other spot? Possibly the laundry room or cabinets under your sinks where you keep cleaning supplies. But if you have a fish tank, it might even be the place where you keep your aquarium supplies!!! Between pH balancers, mineral supplements, and chemically processed fish foods, there are bound to be many ionic compounds throughout.
So let's try to identify and name a few that I have found:
(This is a Prezi that names 20 ionic compounds that I identified on various aquarium related products.)