a fisherman
whatelse could it be??
An Aquarist is a person who has aquariums and collects fish as a hobby, a simpler term could be fishkeeper.
A person who collects beetles is a coleopterist.
a strawber.
A cravatologist.
Bibliophile
collecter
supernatural
An aquarist is someone who collects fish in aquariums. They can also simply be called fish keepers. Some collect a variety of fish, while others specialize in a few kinds.
a button collector
A badge collector.
A paper collector
A gem collector
A car collector?