Hi...Very nice set up!!!!!!! I know it takes a long time to make a fish room
but at the end it's worth it...
It has been almost three years for me and mine is not as big as yours..
I have a question about your pump motors.....
First of all I will give you my experience..
I have a filter that is very similar to yours(Advantage Plus).
I ordered a 1/3 horse power motor for my filter with 2 inch ports(in/out).
After my plumbing was installed I thought I better do an accurate
measurement on head pressure...after studying this for an entire weekend
I realized that my pump was too small. (even thou my tank is only 5 ft
above my motor, the problem was all the fittings I used and the distance
from my tank to the motor).
I phone artisian pro manufacturer and he agreed with me that the pump
would not be able to overcome the head pressure.
Luckily the pump was still in the box and I sent it back and got
a 1/2 horse power pump with high flow.
This new pump is good for 43ft of head and 7000 gal an hour at 3 head.
I have a flow meter in my plumbing set up and when I started it
It ran at 3600gal per hour at 35ft head.
So as you can see the flow rate was greatly reduced due to my piping,height,distance and fittings.
I'm sure you done your homework but bigger is better.....cheers...