99.9% of the time those seeds aren’t truly aquatic. The reason for that plant growing tall is because it’s trying to break the surface. If possible I suggest taking all those plants out and replace them with actual aquatic plants. Ludwigia, rotala, myrio green, hygrophila corymbosa are some easy stem plants.
If you wanna try keeping the plants you currently have there’s a risk because those plants can melt and affect your water parameters, and can even crash your cycle.