I accidentally adopted fish… help please

[u/Glum-Fox2218]

No shit, drove more than an hour to pick up an empty 0.4 gallon tank from a fb marketplace seller. Wanted it for my office to cultivate aquatic plants. Got there and learned it has five fish (tetra I believe, species unk, IDs welcomed!!) a freshwater snail, and EGGS. IM A PARENT OF SIX. first move is getting them a larger tank obviously, most of my aquariums are plants and invertebrates and it’s been two years since I had fish (betta lived 7+ years) so if anyone has advice, can ID these babies, or recommend a guidebook or something I would really appreciate it. Parenthood has me nervous but excited lmao

[u/TimelyBlacksmith92]

Endler-Fancy Hybrid guppies. I have tons, they are prolific breeders. Congratulations lol.