A diatom filter uses diatomaceous earth powder to remove fine particulates (you know that
)...it may work to a degree to remove silicates so long as they are greater than 1 micron in diameter...however every water change you do would add some of the diatoms back in and the process could get tedious.
Have you thought of any other options? If its brown algae, let it run its course or get some otos.
Have you thought of any other options? If its brown algae, let it run its course or get some otos.