Dreaming of an aquarium means you are constantly busying yourself, yet you feel that nothing is being accomplished causing you to be stuck in one place. Your career and relationships are not progressing at a steady pace. Try refocusing on what is important in your life, and stop activities that only look cool but accomplishes nothing.
In a dream about an aquarium, the person may feel that they belong in this aquatic environment or there is a need to grow and expand their horizons. The environment of an aquarium can also signify the need for balance or the need to be more grounded or rooted in reality of what you might experience in your waking life.