First murder case witnessed
I saw my angel fish today with two whisker on its mouth. I asked myself why this guy grew whisker? is it a different species? I got the answer just seconds later when it spit out the head of my cherry shrimp! Considering this guy also nibble on my star grass a lot, I think I gotta get it out and send it back to LFS (got it only a month ago). Strange thing is that the other two angel fish in the same tank really behave (one of them is 2 years old and is much larger).
Is the aggressiveness really just personality? or is it because of the gender? I know the mild bigger one is a female because she lay eggs, maybe this bad boy is a male? Anyone knows how to tell angel fish's gender?