Wild Northern Crayfish vs Blue Crayfish

[Tydepool]

I expect flack for this, but due to a spike in my main tank I had to temporarily house my blue crayfish in my son's wild tank-which contains a turtle, snails, a small aquarium variety cat and two Northern Crayfish brought from the lake. After these were housed together for a few days my large Northern kept approaching my female Blue Cray and she wouldn't back off but instead would let (him?) hold her pitchers and wildly pet his face with her feelers. I have since removed her from this tank, but I would really like to know what the probable outcome would be, had I left her in this tank. Any speculation would be greatly appreciated! I'm new to this, and have learned more from you guys than any other site. Thank you!

[ownu4free]

Any photo of the two crays?

[Tydepool]

Sure! Let me see what I can come up with.