Fan-vent thoughts

[Ryan7]

New 425G tank build and going over fan and venting ideas.

Looking for thoughts on the following;

I have a bathroom fan vent (I believe 6" diameter) I can tee into which runs directly from the bathroom to the outside of the house. So I am thinking of getting two more bathroom fans, one coming from the sump/equipment room and another coming from the area above the tank where the of course the lights are, and teeing these into the existing bathroom fan vent.

Thoughts?