Ecosystem Pro Series 40 Hang-On-Back Filter/Refugium

[tlkng1]

Good morning

Does anyone have experience with this system?

A few questions:

I installed this last night on my 38 gal. The "L" brackets are not flush to the tank rim and the nylon screws are just resting on the inner lip of the tank trim. The other issue I have is the pump itself. This pump isn't nearly strong enough in my estimation....if you have this system, have you swapped out the pump?

Thanks

Terese