To be honest with the AUL Endlie and pacmans which are all slow to getting food unless it hits them in the face I just rely on them being hardy fish which they are and even if they get just 1 full shrimp each every couple days its a decent sized meal enough and with the scraps that are always left over that the big fish dont worry about the AUL gets that as well. Lastly when I feed pellets they never all get eaten and the slow fish can take their time but I dont like to use them too much cause they mess up the water bad