The company that made Genesis, Aquarium Products, has sadly been gone for a while now. They were based out of Glen Burnie, MD, which made them a very locally owned company. Some of you might even remember Merrill Cohen, who was the founder of the company and passed away in 2003 -- very knowledgeable man. They were bought up in 1999 by Interpet, but continued to produce under the Aquarium Products label for some time. They were eventually bought up by Central Pet and Garden, when they did their big buying binge, and the AP label was eventually done away with.
Genesis was a strictly sodium thiosulphite based dechlorinator: Prime has kind of replaced it as the industry standard.
You can buy "Safe," from SeaChem, which is basically powdered Prime, but it should NOT be mixed up beforehand and stored for long periods. The chemical breaks down in water, over time, and Safe lacks the binders that keep it from doing that (according to their website). Some people have ignored that warning and had good success, but I've also heard others say it causes problems. So, caveat.
