is this enough water movement for an eventual reef?

[hackteck]

i have a 55G tank currently i have 2x hydor Evolution 750s at either end of the tank pointing at each other plus a hob filter rated at 280gph is this enough water movement? and also should the powerheads be pointed directly at each other or maybe back towards the rocks? just looking for the best placement Thanks ahead of time

[XxVooDooxX]

I have two 750's in my 46 and it seems to be fine, almost to much. But as far as placement you should just watch the flow and tweak them according to dead spots. That's what I did

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