I've got many, freshwater, saltwater, etc...
buy a book about maintaining an aqurium BEFORE you buy your tank and fish.
Oscars, African Cichlids, Mollies, Platies, Barbs, Angels, Lionfish, Clowns, Tangs.
"The difference between intelligence and stupidity is that intelligence as its limits"
Maintaining proper calcium levels is an important part of keeping your marine tank healthy.
Why buy Aquarium Supplies online?
An overview of tropical fish tanks, what they are, and the pros/cons of keeping one.