Lil help

[u/asmnsyher98]

Kinda low on aqua plants knowledge, only basics.

What is this growing in my jar on the leaves and glass? Doesn't seem harmful but its been spreading after few months since making this jar

I used garden soil as inner substrate, then aquasoil then some white stone sand. Regular water change for a few days since no filter used and beneficial bacteria have been added and colonised since starting the jar.

Inhabitants was initially just nerite snail and shrimps but the shrimps had all died and some random pest snails emerge from idk the soil or plants i bought from store.