In that case, I highly recommend colonising "Psi Caetooine 3" with 3 colony ships. If that means waiting, it's probably a good idea. On my first colony I'm hardly producing anything and that was founded 72 days ago with 1 colony ship. Even if I tripled the resources (i.e. sent 3 colony ships) there it wouldn't be great, but it'd be enough to actually contribute something.
So I shouldnt send 1 Arc there and another Arc to Pi Ophiuchimeda? Cos Sacha said to send 1 arc to 1 planet :S