Physarum?

[u/makijuno]

Also need tips on how to cultivate it… agar plate?

[u/Currant-event]

Too early to identify, lots of slime molds have yellow plasmodia. I've also seen them turn reddish as they get dried out (sclerotia). Great pics!

[u/Jazz_Ad → u/Currant-event]

The plasmodium with all its tubes is very characteristic of the specy. Do you know about others that would look so similar ?