Slime mold amoeba has a good appetite

 I've been keeping this slime mold amoeba (Physarum rigidum) for the past two years, and he eats a variety of things, including mushrooms, boiled rice granules, and oatmeal.

 It seems that his favorite food is the raw mushrooms that he has been always eating when in the forest. I bought nameko mushrooms, buna-shimeji mushrooms, maitake mushrooms, etc. at the supermarket and have been giving them to him.   Slime molds usually grow on rotting wood in the forest and reproduce by spores, so there was a time when they were the kind of the fungus like mushrooms, but in fact they are completely different according to the recent studies.

 I put some mushrooms and boiled rice granules in the rearing container. Please pay attention to the yellow amoeba vigorously growing in the lower right.

June 4th, 7pm

 The next morning, 12 hours later, the food was covered with yellow amoebas. They may prefer maitake mushrooms to boiled rice granules.  I think they moved from the lower right. 

June 5th, 7AM

 This is the view of the slime molds additional 12 hours later. The slime mold amoeba that was at the lower right in the first photo has moved to the given food and disappeared from there.

June 5th, 7 PM

 I think he has a huge appetite, so I placed some maitake mushrooms a little further away (not shown in this photo) as a midnight snack.

 The next morning, the slime mold amoeba had gone to the new food and had almost disappeared from the mushrooms and boiled rice granules that I gave him 2 days ago. I think the slime mold amoeba is fickle, because when he finds new food, he immediately goes there.

June 6th, 8AM