Need the right flow for 210 gal reef

I have an All Glass 210 gal tank with built in overflows. I use a Mag 1200 pump for the sump. Each return has a splitter that I attached to the outer plug-in on the overflow and I send 1 return down into the rocks and the other works the water top. I have 2 Koralia 2's on the back wall facing the front and a Koralia 4 on each side. Is this sufficent? I was told to not go bigger in the sump or the water flow would be to fast for the refugium. Looking for any suggestions....

 

Great looking tank. What type of corals are you planning on keeping?

 

Fantastic looking tank.
You will want about 20X DT volume for a softy/LPS tank and 30X+ for SPS.

 

I'm open to having all 3 different types of coral and I will see which ones survive. I wasn't originally going to go with SPS corals because I believed I had to have Metal Haloids but I've learned that the T5's I have are ok for them.

I wasn't all that crazy about the SPS corals when I started with reef tanks but my mind is changing a little so it's a wait and see. It's going to cost me about $375 to change the T5's later in the year so we'll see....

 

Once SPS gets in your blood.......