Erin,
Here is my interpretation of the images and actions from your dream. This is how I analyze dreams, interpreting the symbolic images/actions in an attempt to recognize emotional patters {dreams are about our emotions}.

-grandpa's house-relationship with grandpa
-in living room with Clio in tank-in same position as Clio/Clio is you
Note: a snake represents new birth/new beginnings. It is often a spiritual symbol/Kundalini
-being in new tank-in new position but with same emotions
-much bigger tank/she had grown-expanding your horizons in adult life
-back and forth to the tank-revolving emotions between past and present
-baby snake/like her/smaller-new part of self that is beginning to form
-did not know she was pregnant-unaware of new aspects within self
-did not give excessive thought-not previously having notion of inner energies
-went back/baby snake not there with Clio/ugly black snake with rough exterior-past emotions/experiences lacking new horizons/unconscious aspects that have affected your personality
-went back/tank started to fill with reptiles out of no where-past experiences repressed emotions

I won't interpret the rest of the dream images/actions since they seem to be about all the reptiles/emotions that you need to sort out.The dream does seem to be addressing the improvements in your emotional life and may because of your spiritual interests {Jung often noted that those patients that discovered their true spiritual identity were able to resolve their emotional conflicts/issues}. The baby snake would be the new aspects that are providing these improvements. You are growing not only as a person and spiritually but also in your ability to manage your emotions/depression. I believe this is an important part of what the dream is attempting to communicate.

But there are still emotional issues from your past that are still unresolved {tank filling up with reptiles, barely enough room to fit all the animals}. This may be pointing to the pressures you feel concerning past experiences {unconsciously} as well as pressures in controlling the depression.This may point to a neurological issue {depression can be a psychological condition as well as neurological}. Are you taking medications for your depression? You have the depression under control but it is still a constant threat. Psychologically you are able to manage the issue partly due to the spiritual aspects but you may need to examine the possible neurological aspects. There may be something from early life you have not yet confronted {negative experiences that were traumatic or really bad}. If not then the neurological aspects may be the problem in controlling your depression. That would require a medical analysis {drugs to help control the depression}.

Summary
Look back at your early life and determine if there are/were negative experiences that need resolution. It could involve issues as simple as the relationship with parents {very early life experiences are imprinted on the psyche and can become a motivator later in life}. Or it could be something worse. Your spiritual self is definitely a positive {Jung, a scientist believed in the spiritual aspect with the psyche} and may be helping. Examine your past and see if there is anything that would be represented by the reptiles that needs healing {serpents/reptiles often represent emotional healing}. Psychological issues that need your attention and healing.

Are you taking medications for your depression? Have you seen a medical doctor for it? Or a psychiatrist {a psychologist who can give prescriptions}? If there are neurological issues you need to treat those as well. Dreams not only address the psychological aspects but will also address physical conditions.

Jerry

Age & Gender & Location {Required}: 66 Cocoa, Fl

Have You Posted Before? Date of Last Post {Use Search and Your Post Name to Help Find Last Post} Yes