SBS Catcher mixes contain, flavour, colour, enhancers, vitamin/mineral supplement and a proven blend of easily digested human food grade ingredients. You can also increase the catching power of you mix by adding SBS liquid foods, natural attractors and oils to your eggs. Any of the SBS natural extracts, e.g. liver powder, robin red, seaweed kelp powder, green-lipped mussel, brewers yeast and betain HCL, can also be added to increase nutritional and digestible food values in your mix.