My Damsels are going crazy after like 7 yrs in the tank with each other something is happening! They are pretty big now. Silver dollar size. Yellow fins and silver bodies. Now these were starter fish I bought to cycle tank (my 90 is about 7-8 yrs old, and yes I know never buy fish to cycle I was new and listening to bad LFS advice). They are super healthy and have always schooled with a little normal chasing but never anything like what I'm seeing now. 2 big ones are hiding and every color is heightened and sharp. Their scales are even shaded they look great but clearly stressed. Another bigger one but not the biggest is holding them both at bay in the corner behind rocks. Wont let them swim or eat. Now I have 3 smaller ones swimming around like nothing is going on....Is this a breeding, sexing thing. If so I fear it won't stop until one kills the other. I have a dozen fish books and can't find any info on breeding etc.
