Hello, I am upgrading my 29 gallon tank to a 120 gallon and am debating what fish to get, Right now I have 2 Silver Dollars(4"), 2 Praecox Rainbow(2"), 2 Zebra Danios(1.5") and 2 Columbian Sharks(6"). I should be getting 3 Red Hook Silver Dollars in pretty soon. I have been debating getting some Clown Loaches or Corys. I just can't make up my mind. Does any one have any suggestions on which one might be better? Any other stocking suggestions are appreciated also. Thanks