Hi, I'm new to this forum and relatively new to a saltwater tank. I have a 14 gallon saltwater tank and my water levels are good - ph is 8.3 and all other testings are in good ranges. My tank has been up and running now for 5 months. In it I have one Clarkii Clown fish and one long tentacled Anemone. My intention has been to add 1 or 2 more clown fish to the tank, and that's it as I do realize my tank is small and I do not want to overcrowd. I will consider a larger tank to move my fish and anemone to as I get more experience. My Clarkii and Anemone have down well for the past 5 months, so I decided this weekend to add a new Clown fish. I went to two different pet stores and both told me that if I added new Clown fish to add two at the same time to minimize any aggression towards each other. Well, I've done that and one of the new clown fish is extremely aggressive towards my existing clown fish of 5 months. The new clown fish I believe are Ocellaris. One is orange and white and the other is black and white. The orange one is the aggressor. The orange one chases my Clarkii around the tank and has head butted him. The black and white gets along well with my Clarkii as well as the new orange one (and they were in separate tanks at the store). I've read online about clownfish being territorial and aggressive and sometimes towards other clown fish breeds, but usually it is with the existing clownfish bullying the new addition - not the other way around. My existing clown fish has done the "tuna" dance to the aggressive clown fish yet it is still chased and bullied. It has not bitten my existing one, but does seem very aggressive and constantly chases it. They are both about the same size as each other - a little over an inch long. Has anyone experienced this and will they eventually settle down as one becomes female? I will see if I can return the aggressive one if not, as I do not want my Clarkii to be terrorized and he seems to do well with the new black and white one. Also, I've been feeding them one time per day, but I've read that some people feed twice per day. Any insight on what is best? I've been feeding a frozen shrimp/agae food as well as flake food. My fish seems to like the flake food best and just nibble on the frozen food particles that defrost. Is that common too? I've read that they prefer frozen food, but mine seems to like flake food best. any recommendations on food? I appreciate any insight, advise and help. Thanks very much.