GOLDFISH
Aquatics in deep waters remind us of courage and will to succeed because it is only in the deep waters they learn how to swim. Take Goldfish; they too, thrive in deep water.
To some it symbolizes abundance, money, good luck for some, but to me it is a great example of perseverance and determination.
I try to look at our relationship with water from the eyes of Goldfish. I don't think that's something we can experience out on the surface. It invites us to swim deeper into our subconscious.