Only send troop transports.
Actually, no, there's not; at least not that I've found. I usually get ticked at the AI and glass their planets out of spite anyway. I hate dealing with unruly population, and to me it's worth it to replace with my own, unless I've got a significant happiness bonus or it's an outpost in a system I already have colonized.
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"The Unpronounceable" Krsqk
Basic Tech Mod
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Current changes list
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Future ideas list
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The Unpronounceable Krsqk
"Well, sir, at the moment my left processor doesn't know what my right is doing." -
Freefall