I was watching my fish last night and I noticed that the 2 Oscars I have never leave each other's sides, plus the fish have become more aggressive than normal, and for some reason they are moving the gravel around like they are building a nest or something. Im new to the Oscar business lol so if someone could help me I would appreciate it. Oh BTW here is a pic of the two. The Pure Orange Oscar is the one I THINK is pregnant.

