cami gilbert

well i have a science fair project that has to do with planaria dissection (its the effect of feeding on the regeneration of planaria). and i've searched everywhere but i cant find how much to feed my planaria. i have a low budget so i dont want to go out and buy much unless its at a low cost. they say planaria eat hard boiled egg yolk but how many grams should i give about 7 planaria? i just need this information to help me move on with my project. help please?