I am looking at putting together a small species predator tank. Dimensions in inches are 72 x 14 x 18. I have the following in my tank at the moment: Pictus Catfish x 2 Synodontis Petricola x 2 Asian Bumblebee Catfish x 1 Spiny Peacock Eel x 1 Paradise Fish x 1 This is what I would like to add: Crazy Fish x 1 African Butterfly Fish x 1 Red Tailed Black Shark x 1 Black Ghost Knife Fish x 1 Pakistani Loaches or Flying Foxes are also being considered. What are people's thoughts ? Is there anything I should add or consider not adding from my list ? Any thoughts or criticism appreciated. Thanks.