75 gallon reef tank up and running + flow question.

[robandrosco]

Just wanted to say thanks to everyone for all of the useful information on here and give you guys an update on my tank.

Thought it would be a good idea to sneak a question for you guys in here too..

If I were to buy power heads where in the tank would i place them and what flow rate should I get?

Here is my tank and sump setup. All Water peramiters tested great about an hour ago. Only filter I am using is LR with a heavily stocked clean up crew.

Live stock includes the following:
Sailfin Tang
Pair of perc clowns
Pair of pajama cardinals
Six Line wrasse
A green chromis
A sea hare
long spined urchin
5 emerald crabs
40+ blue legged hermit crabs
40+ Snails
2 peppermint shrimp

Corals include:
A leather
Kenya tree scattered around
6 types of zoo frags (just got them)