Bottom Feeder Help

[DB80]

Was thinking of getting a bottom feeder sort of fish to help keep tank clean I have an 84l tank with 3glow light tetras 2 cherry barbs 2 platys what would go well with the fish I have and not take up to much room as want to add a few more fish thanks

 

[Wills]

Cherry Shirmp and Nerite Snails Top up your schools first though the Barbs and Tetras need topping upto 6 each

Wills