I went to my lfs the other day and was talking to the owner about discus bred and then kept for life in hard water successfully. Anyone heard of this? If so where in this country can you get them? My lfs owner said they were being bred this way in Germany but I can't seem to find any here, I'm doing this because I'm setting up a very heavily planted 450l Discus and Tetra tank and most of the plants I want to keep are much better off in harder water.