Still funny how Nintendo accidentally made a transfem splatband member by giving a betta woman long, flowing fins that look like long hair and a dress despite only the male betta fish having fins like that. There's no way it was intentional, and it was totally a "frilly and pretty = girl" type mindset that backed them into this corner. Finn Feeder has features that only a biologically male betta has, yet goes by she/her pronouns and presents very femininely. How else can this possibly be interpreted. That fish is trans and, in a meta sense, it's entirely by accident.
Betta tank is serving as a holding tank for a whole bunch of extra plants while the 20g long is being redone, so Lychee's little 10g domain has become a vibrant jungle.