Hi I have 160 gallon 7'x20"x2' tank with 2 young Oscars and a pack of 5 Clown Loaches, given the eventual size of these fish would I be overstocked if I added 6 silver dollars to the mix.
i think you should be fine, silver dollars wont add that much waste to the tank compared to the oscars, just make sure to keep up with water quality as they all grow larger