I agree with the idea you can feed in small amounts as often as you like, also the fish are likely to eat as often as you feed them, I mean they are fish which means they will eat until they pop literally. That means WATER QUALITY is the determining factor. Just don't overfeed causing the parameters to crash. Overfeeding is the best argument for CUC, if you do overfeed they can help clean up. BTW, I'm sure it is not the best way because it the wild fish eat all day long but I generally feed only once per day becasue of my schedule.