I have a 75gal tank, I have lots of live rock do not know in pounds, its been running for over 5 months now, I have a Clown Trigger, Eng. Goby, Lawn Mower Blenny, Blue Damsel, Dog Face Puffer, Valentini Puffer, saltwater crabs, urchin, choc chip starfish. Because he has been put in the tank...