Where to place equipment in new 135g? Question

Where should I place 2 filters, 2 heaters, and air stone in a 135g?

Filters are both canister w/ spray bar.

Thanks!

 

I have 2 canisters on my 150 and they are both together under the tank with the intake for one and the outflow/spray bar for the other on one side and vice versa. I have 2 heaters in my 75 and have them both at an angle in the back spaced evenly apart. I use spray wands instead of airstones and have them in a corner in the back of each tank.

 

One on each end, one on each end, and in the middle.

 

Thanks. I have a powerhead and HOB I can throw on if needed.

I'll probably use an air wand on the back wall to prevent dead spots.