Thanks peewee1! I’ll definitely try this.Torpedo is true, Tom. Yet I have watched several YouTube video to notice that wild Discus do live in river currents. Reference https://www.youtube.com/watch?v=TI3ZR84rjvQ
Using this as an example I installed the wave maker. Since then the smallest of my fish, one who spent it's life behind a branch, came out of hiding and is now swimming all over the tank. It enjoys swimming in the current caused by the wave maker snatching food as it flies by. The fish is eating more food than ever before. Two other large males spent most of their time fighting. Now seldom do they fight and sometimes even show mating signals. Now I am worried that they might be the gay. Try the wave maker, they are not expensive. If you angle it up the waves created will serve to aerate as well. My son, Little Ricky, may have been right. The fish seem distracted from fighting so often because they are too busy swimming in the current and looking for the food they find there. By the way 24C is 75F, as noted in the video. A moderate current and 75F water temp may be an answer? I lowered the temp to 82. I may try for 78F next week to see what happens.