I had a snowflake clownfish in a 25g tank for about 2 months now and I added another one (Onyx misbar) last night, The onyx (slightly larger) has been chasing around the snowflake all morning, I was wondering if this will eventually stop or if I should separate the two now as I don't want the snowflake to get too stressed. I believe they are both Ocellaris. Thanks in advance.