Need oil, it's organic, won't hurt plants and kills all sorts of unwanted buggies. Also, next Spring find a garden center that sells Lady Bugs, if you release them properly they will hang around and feast on them. Ooops I didn't read the 'currently indoors' part, the treatment should be done outside.
Ronni I hope this helps it for indoors mate, I hope you get them removed as they're a pure nightmare. https://www.thespruce.com/control-aphids-on-houseplants-1902889
