Gnats and creepy crawlies

[La Casa de las Orquideas]

Also, you could try pouring freely hydrogen peroxide (the one you commonly find in drug stores) or soaking the plant in it. It won't hurt the roots, and it will kill any larvae or eggs. It's cruel to watch because they will twirl painfully because the HP burns them. Also helps to get read of some types of bacteria and fungus.

Hope it helps