Tank is packed with fish especially with 5 damsels. You will have the piscine equivalent of world war II when they get a little bigger. Personally I would not add any more fish to that tank without removing a few.

For reference in a 75 I have:

- 1 Harlequin Tusk fish 6"

- 1 Vtail grouper 4"


And I would consider maybe adding one more fish.