Return pomp strength

[tirish]

I have an aquatop 40 gallon cube tank. I currently use the return pump that was included in the tank. I feel like the suction power from the first chamber is not great and possibly lacking. Is this something worth upgrading for better filtration through the AIO chambers in the back or is it not needed. Pics of the current tank

 

[Saltyreef]

Get yourself a jebao dcw.
I just got a dcw1500 for my 20g aio and it flows amazing. You may want to bump up to the next size depeding on your chamber size. Check em out!