720L Tank and 170L Sump?

[the-obstacle]

Hi,

I'm new to the sump side of things but I've got the opportunity to grab a 720L tank and figure a sump is going to be the most cost effective way of filtering it. I've got a 170L tank that I can use as a sump - is this big enough?

I figure I'll run it as a completely submerged system to keep it quiet with a durso setup from an overflow in the big tank. From there I'll go through filter wool into bio balls / noodles (as many as possible and then straight into the pump out / heater section. Am I missing anything?

I appreciate all and any help on this one. I'm stoked to be able to get a real size tank. Thanks in advance!

 

[FSM]

yes that's big enough. Just make sure you account for how much the tank will drain down into the sump when the pump is off - especially because you want to do all submerged media, which will probably mean less excess space in the sump.