we use zatarains crispy southern batter and pan fry in veg oil. we usually cut the filet in half, long ways.. too good.
i didnt put any in my pond this year, so we buy walamrt filets.

i did have them 2 years in my pond. first year they were ok tasting, 2nd year they had a strong taste.
i saw the same grenish/blue fluid when i was cleaning mine also.

i like cooking them on the big green egg too.

Scott Hanners