Ha.. Funny!, Solution As Both answer; and dissolving of one substance into another
Mix 5 drops of Fairy dish-soap in 3 cups of tap-water,
add few drops of squeezed/preserved lemon-juice, to make the solution slightly acidic,
pour the solution into a small spray-bottle, preferably one with a wide-spray function (aerosol-like)
(an empty Windex bottle will be perfect for this).
vigorously spray the leaves and stoke of every plant (but not the soil) with the solution,
do it at night, for two nights in a row,
while the aphids will die-out quite fast,
the ants that gorge on the aphids will still come for few more days.