Actually, there was someone else who was potentially interested in making a krogan... So I guess I'll let you sort it out among yourselves. You did post first, so I suppose you have dibs, but I recall you said you were willing to be flexible.

If you do go with this, I assume Quash is the name of his clan? That sounds pretty krogan alright. :P Why would he keep in touch with Aria after that, though? Or rather, why would she keep in touch with him?

I can see a lot of abilities that could be wrung out of this. The relationship with Aria should definitely be one, if you expand on its nature a little bit.