Well I went along and did it. I acclimated the fish for around 35 mns or so. The clown that I already had is about 2 inches and pretty tall, and the new one that I put in is around 1.5 inches, or maybe a tiny bit smaller. So, I put the clown in the tank finally. The chasing starts and the bigger clownfish, right as it came from the bag, took hold of the other clowns "tail" and let go after a second about, just a bit of a scratched fin. For about 20 minutes the bigger one chased the smaller one around, but didn't seem to actually "touch" the smaller clown, just mostly chased it. Now it's been almost 30 mns, and it seems it is already much better. Now, there isn't much chasing going along, but the clownfish do this weird dance every so often, where there next to each other, and sort of twitch. So far, everything seems to be going alright. What do you guys think? Thanks!!!