To the lighting you may go with the NICREW ClassicLED light that's great for bringing out the colour and wonder out of African Cichlids. Regardless that it is an algae eater the twig catfish needs food plan diversity, which you can give by feeding it with sinking pellets and bloodworms. https://share.evernote.com/note/1ca08f14-6fe7-e3e5-b00d-6e7a28427620