Anyone, please! I have 3 yo yo loaches in my 55 gallon. The prob I am having is aggression towards the cories, particulary my pandas! Is this normal for dominancy? I am so distressed, I went out and picked up a 38 gallon to transfer fish all around so they are not with cories at all. I took on these 3 fish for a favor for a friend and really enjoy them but am worried about my cories, my first loves!