1. buy an RO/DI unit, dont use tap water
2. get more powerheads for flow.
3. 2.5 months is to fats for 3 fish, you shoudl wait a month for cycle and a fish every month, IMO
4. the SWF.com clean up crews are great, best you can get for your money, i have no complaint but a emerald that ate my corals, but they can help that. definitly a good buy!
5. you want at least 1 pound of live rock per gallon for proper filtration, that is adding, the micro fauana isnt strong enough in a 72g bow with onyl 30lbs of LR, and the nitrates arent getting taken out, so the alage is growing and thriving on the nutrients.
6. look into getting a sump/refugium for filtrations and filtration room in place of your wet/dry