If the question is how to make them fat, use everything you have and feed feed feed. When I travel they eat less and, for example, my mono was starting to get a pronounced nuchal hump when I left for a week. When I returned the hump was rediculously big. Why becasue he lost a lot of bulk since I feed so often when I was home. It took him 7 days of "regular feeding" before he bulked up again. I use FD Krill, tilapia, shrimp, silvers and massivore. The colors are amazing. mix it up and feed heavy and they will be fat. I prefer a fat bass, unlike my woman. Oh yeah, change the water, a lot. hope this helps.