I've recently joined this forum after reading many of your posts. I've been thinking about getting a new 55 gallon tank, and making it an Amazon River Basin Tank. I'm aware of the driftwood/plant types I'd need to make it a good tank, but what fish would be good to be in there. I really want a discus but I obviously wouldn't be able to house a shoal of them + other fish in the 55g. I was also thinking about a Black Ghost Knife, but I'd eventually have to move him as he gets quite big(up to almost 2 feet i hear?). Would it be possible to do a single discus and add other amazon fish? Or am I just asking for trouble.