Flow help on a 33g

[fishbox]

I currently have a 20g sumpless/skimmerless fish only tank. I'm gonna move everything into a 33g and use the 20 as a sump. Probably gonna do some super ez corals like shrooms and other softies in this tank. I know I'm gonna have to up the flow in the display but don't know what to get. I currently have two koralia nano pump 240. I'm looking @ a Jabeo DCT 4000 as a return pump @ about 4'head. Should that and the two K nano 240s be enough?

 

[mjstech]

I had two 240s on my 29g sump less, but ending up with the 425s. I use the hydor wave timer with them too.

 

[fishbox]

Should I maybe add another 240 or 425 with the existing two 240s plus the DCT 4000?