powerhead placement

[reeferlover]

i have a 24 gallon nano, the return water flow from the filter is on the back of the tank in the top right hand side, i just bought a small powerhead to add more flow. My question is what is the best placement of the powerhead to get best overall flow for the tank? thanks in advance

[MizTanks]

Opposite end from your return, side panel. Directed upwards if you have no surface agitation. Otherwise random.