In the past our biohacker build up a strain collection with several microorganism, most of them are bacteria. Some of them are laboratory strains (f. e. E. coli K12) for molecular biology experiments and genetic engineering, other are undefined isolatets from the environment.
Slime molds need oxygen, moisture, a degradable food source, moderate temperature and like to avoid light. So we let it grow at room temperature in a darkened box, filled with agar-agar (only water) and offering oat flakes. :-D
Originally collected from the forests a Slime Mold grows quite well in that wooden environmet we created in a box. Slime molds are fascinating protozoa, not dangerous at all and every biohacker could handle it, so have fun :-D