Hi. I am fairly new into fish. I have a 90 gal with mostely ciclids. The tank is set up with lots of rocks, drift wood, ect .. My question is I have 2 blood parrots. One is about 6" and really round and the other is abou 5" and a little smaller. How can I tell the sex of these. They tend to stay in one area hid between rocks. Like a cave. The chase away every other fish wich comes near them. There are maybe 2-3 other ciclids there size or a little larger. Most are smaller. The only larger one that is alot bigger is an oscar. I probabbly have a few to many fish in the tank. But, most are smaller and a intend on getting a larger tank. Is it possible they laid eggs? When I clean the tank they even attack me. They even chase away the larger oscar. Is this just there nature?, or possibly do I have a breeding pair?