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I just moved them to face each other and up’d the random flow. I have cyno that is everywhere… too many dead spots.That's always a hard one to give advice. I would place one of your Nero's closer towards the back to ensure flow on the back side of the rock as well. Alternate your flow; make it 'random' - and play a wee bit around with it. You won't be successful over night sadly.
Flow requirements will change as your tank matures and your corals grow bigger as well.
Do you have any indications that what you are doing now isn't quite working the way you want it to? If not, then it might be better to leave it as is