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Tami
Good day, esteemed lovers of marine aquaristics! I recently encountered a situation: Two clownfish (Amphiprion ocellaris) are behaving strangely for the second time after cleaning the filter (Aquael Nano Reef 20L basic backpack). They chase each other, the larger one nips at the smaller one's lower fins, and the smaller one starts to tremble frequently, assuming an unnatural position. I managed to capture a little bit of their behavior on video. The smaller one trembles in the last seconds of the video.
Has anyone observed something like this? Should I be worried or not? Thank you in advance for your responses!