I tried taking two out of the same tank from J&L and put them in a 75.....it was full on war from the moment they were put in the tank. Thought I would wait a couple of days and they would each find a corner...but no. After about 3 days one was just gone not to be seen again. I think when you see them in large groups they don't have time to become aggressive.
I also had the same experiance with yellow clown gobbies at the same time with near the same result except I was able to rescue one and put it in another tank. It was amazing how big their little mouths got.
Scott
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