Which pest is this?

[stickyickyy]

I think I found the root of my plants issue, I found some of these small black bugs beneath a few of the leaves. Which pest is this? What is the best way to treat?

 

[Beachwalker]

2 spotted mite, my nemesis

 

[stickyickyy]

2 spotted mite, my nemesis

View attachment 1014364

Any success against them/ tips or experience to share? First time grower and I would be sad to have to trash the plant.