Are the plants doing ok or are they just melting away. Just tossing some plants into an aquarium doesn't mean they will grow.
Is the light that came with your all in one fishtank capable of supporting plant life ? Did you purchase plants that will work well for the amount of light and possibly CO2
/ fertilizers you are using ??
Keeping the leaves from clogging up your filter intake is an on going chore for anyone with a planted aquarium, however if your plants are not growing then your leaves are going to rot off and get caught at the filter intake.... Food for thought