All be getting my discus on Saturday and just making sure am doing my water changes right . When I do a water change I have aged water in 5 gallon water jugs and add prime to the water in the jugs a hour before doing a water change . Then i syphon water out of tank and suck up old food and want not/clean glass and every week rinse out sponges and filter socks . And add aged water with prime back in to tank .