Female has a tendency to swim or dashing up and down the wall of the tank when she is transfered to a different environment and worse when she is alone. It takes her a few days to settle down.
When fish tank is placed on a multi-tier rack, the center of gravity of the rack goes higher. The higher the tank is placed, the more shock the fish will feel when shock wave transmitted from the ground unless the rack is made of heavy duty iron or thick solid wood.
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