Has anyone ever been successful in keeping an Amazon Sword in brackish water? I just got a really nice one for my fiance's tank when we got him a figure 8 puffer. We soon discovered that we would gradually need to convert his water to brackish which we will be doing in a couple days but I need to know if this is going to kill the Amazon sword. The other plants are hornwort, anacharis, and water sprite, all of which I found to be compatible in brackish water but I've not found much on Amazons. Thanks!