Thank you Juan for your suggestions.
I just finished setting up the tank this weekend and after placing the rocks and such, I actually thought that the tank looked small!
Anyhow, I was linking that perhaps 3 of the dolphins, 3 of the yellow labs and 3 of the cynotilapia would be a good amount - are you in agreement?
I can't wait until my tank is finished "cycling" so that I can get my new friends!
BTW, some people have told me that I should first get a couple of "test" fish - just to make sure that all is okay with the tank environment.
If I test my water for proper PH and hardness, do I really need to have the test fish?