Dream about bloody fish is sadly a warning for some instability and lack of control in your life. There is some force trying to draw you in toward your subconscious. You are feeling victimized or helpless in some relationship or situation. This dream is an evidence for how you are looking at things on a superficial level. You are spread to thin and feel that you need to clone yourself in order to get what you need to get done.
Bloody fish dream is a symbol for your subconscious desire to leave that something behind. You are trying to resolve some internal conflict or some unsettled issue in your life. You may be trying to learn from previous mistakes or relive the good and bad times. This dream is about the killing off of the old parts and old habits. You need to take some time off so you can cater to the inner child within.
If you dreamt about bloody fish:
If you sense that you have given too much away, or told your latest love interest too many secrets, then you may want to hang back for a bit and play hard to get. You feel as though you have made it far too easy for them, and now regret having done so.