Alternatively you can use the previous trick on opposite ends of a zooid and then attach zooids to the head in the space between them to make a hexagon.

Zenoplates can be replaced with splitters for insane energy regen (276 EPS).

This is the trick I used to make the layout I named Vicar of Vigor. It lets you place more of the following zooids closer together: Leech, Energy Leech, Claw, Greaser, Grinder, and Agonizer.