Flow for 90G Tank

[idisc]

I have just recently upgraded for a 40B to a 90G reef tank and I am not sure my RW4's are enough. I feel like if I move them any further down in the tank I will barely have any surface agitation.

Should I upgrade to 2x rw8's? Add another Rw4 or something similar to create more flow?

The rw4's are currently on W1, Full Power, Fast ( Spin Speed )

Mostly SPS, some LPS - Thoughts?

 

[flooddc]

for SPS, definitely need at least 2 more rw-8's.
the rw-4 can be in the back center of the tank.

 

[civics14]

I had 2 RW8's in a 65 for an SPS tank. Upgraded to a 150g, and now I'm using 1 RW20 and 2 RW8's for dead spots, working out nicely.

 

[naecO.rM]

Do you have any pictures of your tank?
I have 90g tank with two vortech MP40's.
Before that I have 2 wp25, which are similar to rw8, so not enough for sps.
You can add 3 rw4, but 2 rw8 will be better to add for existing rw4. Or add one CP40.


Хорошего рифа!

 

[idisc]

Sorry I have been very busy - Here is a picture of my tank

https://www.dropbox.com/sh/q53tashd53qr394/AAAgxT3E4Q7XA-gHx3PepCYpa?dl=0

I recently acquired another rw4 - Wondering if I should add it to the back center wall??

I got it for free so I figured I would try this before I get bigger ones.