Flow question

[freeswimmingfis]

Is it too much flow to use 1 Koralia Evolution 1400 and 2 750's on a wavemaker in a standard 90gal tank? The 750's would be on each end facing in and the 1400 would be in the middle facing the front. The wavemaker is a Tusnami 3. It has 2 plugs that time switch state with each other (ends) and a 3rd that is a timed on/off state (middle).
I am currently using 2 OLD Aquaclear 70's on the ends and a OLD MJ1200 in the middle. These need to be retired, sometimes they fail to come back on.
It is a mixed reef, softies, LPS & SPS. I added a bubble coral, BTA and a Torch coral since this pic was taken.
Here is a pic for referance:

 

[seapug]

It's probably not too much flow for the tank but using Koralias on an on/off wave timer usually results in a lot of rattling when the pumps restart. There are little mods you can to to the impeller shaft to help, but I could never get it completely quiet. After shredding hundreds of dollars of modded MJs and standard Koralias I finally sprang for a set of controllable K4s. One of the better equipment purchases I've ever made, IMO.

 

[username in use]

The evo's are better at start up than the originals. As far as the flow, I don't think it will be too much at all. I have 2 of the 750's on my 40g and have augmented with a couple more powerheads.

 

[freeswimmingfis]

If I am using the 1400 in the center, should I go for the 750's or 1050's on the sides? I dont want too much flow, but also dont want too little?
I have the 1400 now, and will be buying the 750's or 1050's tonight.

 

[freeswimmingfis]

OK, I went with the 1400 in the center and a 1050 on each end. The 1400 center is on/off for about 45 seconds, the 1050 sides alternate one then the other every 10 seconds.
Its a lot more flow than I had before, but doesnt seem to be too much. The corals really seem to like it, but the GBTA is a little blown away.

 

[freeswimmingfis]

OK, well....the 1400 is blowing my corals away and is way too strong for my tank. The 1050's are fine. My BTA and Bubble coral are NOT happy at all. I am going to try to trade the 1400 for another 1050, or maybe even go with a 750 for the middle?
Any suggestions?