I would not use any pesticides. Aphids are arthropods just like any invertebrates you plan on eventually adding to your tank.
You can try adding some predatory ladybugs and watch them chew up every single aphids! They may even decide to reproduce in your tank and then you'll have a nice tri-trophic tank going.
Or you can submerge for a while and scoop up the aphids then drain it again.
You can try adding some predatory ladybugs and watch them chew up every single aphids! They may even decide to reproduce in your tank and then you'll have a nice tri-trophic tank going.
Or you can submerge for a while and scoop up the aphids then drain it again.