I need ideas on what to do with a 400 gallon tank. It is a shallow tank, only about 2 feet tall. I would love to do brackish, and put a bunch of Monos in there, but I think the tank is a bit too shallow for them. I also like the idea of ID sharks and/or Arowana. I also just stumble across flame pike cichlids and really loving the color on those, or I might just do a TON of angelfish in there. I want to do live plants in the tank, likely some Anubias tied to driftwood, and maybe a bunch of crypt sp. So I don't really want anything that will demolish live plants. No stingrays or peacock bass (that's what was in it before, I'm looking for something different). Any ideas?