I lost one of my clownfish this weekend and need to get a new friend for my remaining one. They seemed to be a bonded pair. The larger female remains. I'm assuming I can find a smaller one to add. They are "premium picasso" from liveaquaria. Should I stick to replacing with another percula or does it matter? Also would like to purchase online. I've seen onyx picasso or something called nebula that interest me. I'm not sure the best online sources that are legit. Any advice would be helpful. (I know there are different designer clowns at lfs but if I might want something pretty specific and don't want to overpay)