I too have a synodontis angelicus. Bought it because i love the look of the spots against the dark skin, but i never see it. I know its there as i can see it under some wood. Guess it comes out at night to clean up, not that much gets left behind from feeding. I also have tinfoils, a shoal of six plus 3 of the twin bar tinfoil that T1 refers to, but these are real slow growers and everytime i try one in the main tank i loose it. I had 5 and now down to 3 at around 2" but need to get to about 3" before they can survive with the bigger fish. Its weird as i have smaller tiger dats that survive in the main tank fine at under 2".