Need some Flow advice

[RobertP]

I have an older 130 gallon tall tank with two drains. As you can see in the picture I have two Neptune FLOs that work very well. I have them aimed up to try to keep them from blowing the sand too badly. If they are turned up too high I get serious bare spots in the bottom of the tank. Nice thing is I no longer have issues with cyno and algae is almost completely gone. I think the kessil grow light over the refugium really made a difference there.

My concern is that I might not have enough flow in the back middle. I don't want a dead spot back there. I am tempted to get another FLO since I have an extra spot on my Apex. With that I would put low in the middle and see if I can get a little more water movement back there. Alternatively considering a gyre in the middle for the extra flow.
I am also open to suggestions for moving my FLOs. Sitting here looking at the picture makes me think I should move one of them to the top....

Am I worrying too much or is it a legit concern?

 

[jwshiver]

I recently added two gyre XF230's to supplement my two MP40's on my 120 gallon. Made a big difference with SPS growth. Have more than doubled my two part dosing to keep up with growth in the last 2 months. SPS love it, LPS not so much.

 

[McMullen]

If your going towards an SPS dominant tank then in the future another FLOW would be great. With your current setup and would not do anything; Give it time.