Root aphids are such a pain, and it's so annoying to get rid of because there are so many of them. I've been battling with them for three months. If the roots are rotted, I recommend flushing your medium with H202 to help with it. I would do it a couple of times, then continually add it to your nutrient mix. It would be best to flush out as many as possible for the root aphids. Physical removal is key for getting aphid populations down. But to be honest, the only thing that helped me was a
pest control sydney company. They used an eco-solution that killed them.
