what should i do with a very aggressive male can't put any other smaller frontosa in the tank he just atacks then should i just remove him for a while then reintroduce him in the tank any help appreciated
How large is he, and what size tank is he in? How large is your group?
Re-arranging decorations can help, especially if you manage to set it up so the line of sight is broken. That way the females can spend some time without him seeing them, but that only works if you can offer sufficient space.