Evening all, I have 4 Julii Corey’s in a 140l tank no other fish at present. Had them about 3 weeks and they are stressing me out! I want a chilled scape but one of the Coreys keeps hassling the others....it seems to go twitchy and push up against the others.....is it sex business?? I have a short film of what goes on but I can’t upload unfortunately. I welcome your welcome your wise words. Cheers