agreed , instinct will kick in micro will eat claris in the wild it will recognise it as food , because the claris size is somewhere near the micros size i would suggest the micro is attacking the claris and then getting stung by the claris and so then leaving it alone , they problem is he will try it again , i would put the claris in the tub to heal then trade it when it has healed. the micro is just doing what comes natural to it , he will only get worse as he grows at 18" and above you will start to see a defanite change in its behavior , this maybe just the start of it .
cheers col
cheers col