i'm thinking of having some discus in my 180 gal tank. it just finish cycling and i have two 8" ornate and two wide bar datnoids. was planning to put some discus in it. i have quite a current on both end of the tank. would discus love water currents? and what else would i need to keep them tip top shape. many internet website has been saying r/o water, everyday water change, and all sorts of stuff. just want to enjoy discus. is it really hard to keep them?