NEVER put chlorine in an aquarium.... thats just asking for things to die. Do a fishless cycle, (there are pinned threads on this forum on them) and wait until all parameters are where theyre supposed to be (i suggest you go out and buy a master test kit.. a good one is made by Aquarium Pharmaceuticals, INC. called the freshwater master test kit) ammonia should always be at 0 ppm and there should never be any chlorine in an aquarium. Also, some good beginner plants to start off with are Java Fern, and Java Moss. There are alot of other plants that are easy too, but at the moment i cant think of names...