I have added all my discus tank mates for this 92 gallon corner. It is a lower tech planted tsank with a play sand substrate. I just upgraded the filtration to a monster of a Fluval FX5. The outflow goes in two directions, so a placed it in the rear middle so that water flow shoots along each side. WELL, everyplant in the tank is moving. My large angel looks stressed and fatigued. Can discus handle the outflow of this particular filter, in this particular tank??? Please answer based on thsi and not issues concerning plants, substrate, or tankmates. The water flow seems excessive, and I don't want to stock the tank with species that will perish.