Help with my Set Up

Basically, i want to use 2 grow tents, 60x60x140 each, 1 to keep my mothers and clones under a 250 watt CFL, and the other tent for flowering under a 250 watt Cooltube HPS.

I need a decent extraction system running through both tents.

Would you suggest i get a filter for my mother tent? If yes, i was planning on having a carbon filter and fan extracting the air out at the top.

In the tent for flowering, i was going to run this set up:

Filter-->Cooltube-->Fan-->Air Extracted Out Of Tent

To replace the air leaving, i was planning on having another fan on the outside of both tents, blowing air through a T junction piece so that air passes into both tents.

As you can see, theres alot of fans at the moment, and seeing as im trying to keep this as efficiant as possible, may i ask for any help on how to improve this?

If your not flowering any plants in the mother tent, there then i wouldn't get a filter unless the odor comming from the mother tent is strong.

I would set up your flowering tent like this:
Fan-->Cooltube-->Filter-->Air Extracted Out Of Tent

You don't need a fan to blow fresh air in, the fan blowing out will suck fresh in through any opening.

Ok thanks for the comments guys.

From your advice, i wont get a second fan to blow air in.

I was unsure about the smell, i wouldnt have thought odour wouldnt have been a problem with mothers, seeing as they arent budding, and i assumed most of the odour will be produced by this.

Ive been told sucking air through the filter is more efficiant?