Aquarium 
To see an aquarium in your dream indicates that you are aware of certain feelings that you possess but haven't been able to deal with. This may include needs, wants, and fantasies related to sex. Alternately, it may imply that you are at a stagnant point in your life and are confused as to which path to follow. It may also suggest that you are overly stressed and need to slow down, take a deep breath, and try to focus.
Campfire
To dream of starting or seeing a campfire symbolizes your desire to be close to others. You dislike being alone. You should be more honest and straightforward with others. This will allow them to see your true personality.
Goldfish
To dream about goldfish predicts that you will come into prosperity and many wonderful and thrilling escapades.
Mackerel
To dream of a mackerel fish implies strength and courage. It also indicates the ability to know what you want and to achieve it.
A school of mackerel indicates the possibility of huge success in relation to a creative venture.
A lone female mackerel is a message to take note of one particularly exciting idea at this time.
Sea Horse
To dream of a sea horse signifies the strength of your instinct and intuition. It may also symbolize a change in perception or attitude.
If the sea horse is invisible, then it indicates that you need to face your personal concerns rather than trying to evade them. Perhaps you need to adopt a fresh approach to a situation.
Jellyfish
To dream of a jellyfish signifies unpleasant unconscious memories from the past that are now becoming evident. This may represent strong feelings of aggression in certain aspects of your waking life. Additionally, this indicates feelings of unworthiness and inadequacy. It may be due to some situations in the past where you failed to adhere to your principles and beliefs.
Earthworm
To dream of an earthworm suggests the beginning of a creative project. An earthworm is indication of surplus energy that may now be put to productive use with fruitful results. A number of earthworms in a dream speak of creative collaborations. To dream of earthworms coming to the Earth's surface indicates that a break to refuel may be required before continuing a current project. Dreaming of eating earthworms or dried earthworms on the ground may indicate literal dehydration and probable emotional exhaustion.
Sauerkraut
To eat sauerkraut in a dream represents connections to your father. Fond memories of baseball and hotdogs may have connected sauerkraut to your home and family.
Flying Fish
To dream about a flying fish suggests that you feel unencumbered by your emotions and that you are unrestrained.
Hammerhead shark
Dreaming of a hammerhead shark denotes your fear of an enemy or danger. While fish and dolphins are beneficial and positive images to see in a dream, sharks in general represent all things greedy and cold. Regularly dreaming of a hammerhead shark means that there is someone in your life who may be deceiving you in some way. They are not being completely honest with you.