Hi, I'm new to the forum and new to pleco keeping. I'm looking for some advice from you guys. I have just introduced a 7 inch l25 to my 450 liter aquarium. I have some shoaling fish and an l97 and l75 pleco. The problem is that my new l25 is struggling to establish a territory and I've seen fights with the l75. The l75 and the l25 don't worry the l97 because is slightly bigger than them and he seems to be the alpha in the tank. I've added extra hiding placed a caves but he's not really using them. I can't risk my l25 dying and so I'm contemplating moving on the l75 but I don't want to be hasty either. Will a pecking order be decided and will it work with the 3 of them in there ? Or shall I move one one ?