Hello so I have a waterbox reef lx 290.6
Dimensions 72.3”x29.5”x25.6”
I have two Nero 7s on opposite sides if the tank. Running random mode 20-45%. Any higher moves my sand around. I noticed some small dead spots under my rocks and towards the middle back glass near my overflow.
Any suggestions on if I should add 2 more Nero 7s to the back wall at low speed or possibly get 2 orbit 4s and move the Nero 7s to the back at lower speed?
Old picture but best I got to show where I have the flow issue and also where my pumps are currently at (green dots)
Added some extra pictures hopefully some help. If not I can take updated pictures when I get off of work.
Recently been battling high nitrate and thinking maybe increasing my flow reducing the dead spots will help a little? I have a reefmat thats connected to both drains.

Dimensions 72.3”x29.5”x25.6”
I have two Nero 7s on opposite sides if the tank. Running random mode 20-45%. Any higher moves my sand around. I noticed some small dead spots under my rocks and towards the middle back glass near my overflow.
Any suggestions on if I should add 2 more Nero 7s to the back wall at low speed or possibly get 2 orbit 4s and move the Nero 7s to the back at lower speed?
Old picture but best I got to show where I have the flow issue and also where my pumps are currently at (green dots)
Added some extra pictures hopefully some help. If not I can take updated pictures when I get off of work.
Recently been battling high nitrate and thinking maybe increasing my flow reducing the dead spots will help a little? I have a reefmat thats connected to both drains.



