ANOMALY, EUCLID, HUMANOID, SENTIENT CRUSTACEAN, 527

Mr Fish was an ordinary man named Harold Halloway. He studied in finance-related courses throughout university, showing and displaying his natural aptitude for the area early on. With this level of skill, he founded his own business named "Holloway Holders Financial".

It's estimated that this business was founded somewhere in the late 1960's-1970's,  he too had a partner, with his COO being called "Turner Hayes".  This business was funding  Dr. Wondertainment's company, unknowing to the true practices which he partook in at the time.

During the stock market crash of 1973, with his business presumably crumbling, he lost no money, trading all of his stock just moments before it crashed, keeping everything he earned through the use of insider trading. It is implied that Mr Fish was aware of the crash; however, he publicly denied it amid allegations against him. He did, however, go on to say that Turner was by no means involved in insider trading, that he was most likely aware and that it could have contributed to him betraying Mr Fish later on.
Shortly afterwards, roughly 1978, his business partner, Mister Hayes, set him up.' Mr Fish claims that Mr Hayes, working in unison with Wondertainment, kidnapped him and took him to Wondertainment, allowing Dr Wondertainment to operate on him, and turn him into the Fish we know today, and wiped his memories.

Mr. Fish was apart of a 'circus' group called "Little Misters," organized by Dr. Wondertainment. The group had four individuals: Mr Chameleon, Mr Smile, Mr Fish, and Mr Headless. 

While Mr Fish was in the 'circus' group, he recounts being used for shows that wealthy people often watched. The subject also recounts not being given much information while in the group.

⚠ Mr. Fish often has recollections of his memories if exposed to certain anomalies (ie: SCP-1200 or SCP-330).