Dream about water and fish tank is an alert for how you are performing in various aspects of your life. You are not sure about how to express yourself and how to voice your beliefs. Perhaps things are moving too fast or you are not fully comfortable in your relationship. It stands for wounded emotions or feelings that you may have suppressed. You are having issues related to your self-image.
Water and fish tank dream is sadly a warning for feelings of guilt and self-blame. You are experiencing financial difficulties. Perhaps you are lacking these qualities in your relationship. This dream is masculinity, pride, valor, cockiness and arrogance. You need to give new life to some relationship or situation that you previously thought was forgotten or dead.
If you dreamt about water and fish tank:
The only problem is that you may be tempted to overdo it. If you have been writing to someone whom you have not yet had a chance to meet in person, but would very much like to, then you need to let them know how you are feeling. Be brave, but not foolhardy!