crack in my cube = new tank

[fishy7]

I had a 48x48x21 that cracked. They replaced the tank and now I have a 48x48x24. the first tank had 3/4 bulkhead and a 1" bulkhead. This tank has 2
1" bulkheads and a 3/4" bulkhead.
I switched out the tanks last night and I am not sure why I am not getting as much water movement.
I am running a dart sequence pump. I mad the 1" into a 3/4" return. I placed a 3/4 Tee off the pump.
I am not all that great whith plumbing.
Thank you for any help.
Here is a pic of the old way. I put a 3/4" t on the discharge.

 

[reef noob]

http://www.hydor.it/en/products/show/35
they have a more tunze like look.
The new Koralia models 5-6-7-8 guarantee unbelievable performance for probably the lowest power consumption of any pump on the market. Equipped with an electronic start up system, new technology rotors and propellers, compact in size, these new model will quickly become leaders in their flow categories.
KORALIA MAGNUM 5
1.850 gph
8W
KORALIA MAGNUM6
10W
2.200 gph
KORALIA MAGNUM 7
2.700 gph
12W
KORALIA MAGNUM 8
3.250 gph
19W

 

[reef noob]

I dont know why you would have less flow.
you are restricting the heck outta that dart though.

 

[reef noob]

plumb with 1.5 inch up to the tank and you can have 4 to 6 3/4 inch outlets

 

[fishy7]

Thank you I will replub this tonight.