I'm not really sure what you do with the whole bleach solution thing but I know you do it in a bucket or container separate from your tank. Then you rinse the plant off and place it in your tank afterward.
Wysteria and anacharis are great low-light cleansing plants for your tank.=] they're also beautiful IMO. =]
Also if you want to order online coffee anubias looks beautiful! <3 The leaves are all ruffly! <3