| its possible, but your success might really vary.
the problem is that clown fish, being a type damselfish, can be aggressive. this aggression tends to come out towards clowns of different species.
now, if the two different species were introduced together at a young age you might have had a good chance for success.
i see a few issues for you to face though.
1.) you have a tomato clown, probably one of, if not the most, aggressive of the Amphiprion Genus.
2.) the tank is not that large, if there was enough room, they might setup individual territories. now the image might be deceiving, so i would if it is large, than ignore this one.
3.) the new anemone is right under the old one. this means that if you do attempt to add another clownfish it will likely not be able to claim ANY territory there because the tomato will likely chase it away
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