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was CP for 90 gal, now substrate question

I have a number of people help me with lighting and CO2 questions.  Now I
was wondering about the necessity of special substrate.  I have never used
anything but regular gravel.  Can something such as flourite be vacuumed or
will it just be sucked up?  Is vacuuming necessary with the substrate and a
planted tank?  I ask because I have fish that create a fair amount of waste
and vacuuming is necessary.