If you are culturing isopods, you already know that isopods are very easy to raise. They can eat a lot of stuff and you do not even need to feed them very often
Isopods can eat mold and decaying food particles, but you should not feed them with mold.
Even though many animals will not eat mold, detritivores such as isopods can eat mold. Detritivores are animals that eat dead and decaying materials.
Even though isopods can eat mold, the presence of mold in your isopod tank could indicate many things. It could mean that there could be harmful microbes in the tank.
How do you dispose of your isopod substrate? You should note that spent isopod substrate is nutrient-rich and beneficial to plants.