Help setting up sump

I bought a huge 3.2m tank and now need to set up the sump. This is the first time I'm going to use a sump. Attached are pictures of the sump. Advise on what media to use where would really be appreciated.

 

Thank will be for my common pleco that growing at an alarming rate lol. Basically, it will be a community tank so loads of neons, lemons tetras, gmo's, cory's and khuli loaches

 

Wow, a 3.2m tank is huge! It's going to be seriously awesome! Excited to see how it turns out.
I've never used a sump so can't advise, but good luck setting it all up!

 

nice size tank congrats
sumps are awesome,
i set up most of my sumps in the following way
first chamber mechanical filtration either filter socks of batting changed and cleaned often, more dirt and debris you can remove the better
then just full as much biomedia as you can
mostly i use lava rock as it cheap but still use ceramic rings, seachem matrix, pumice stone and what ever other media i have lying around.

try leave media in bags so it is easy to remove a rinse clean every so often

 

Here is the pic of the tank and sump. The plumbing will be done this weekend. I'm super excited about it but also VERY nervous!

 

Can someone show me where they would put what? Is this the way the flow will go??

 

That makes more sense! Thanks so much!

 

Tanks were built by Wazeer aquariums. Got another 2.8 coming next week