Well, I can 1000% guarantee you it's a goldfish, I don't think you could Google guppy and find anything similar. Try Googling goldfish. At least your ram is at the right temp a month is nothing, they can live for years and years, take it back to the petstore.
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Dude that's a new strain of guppy. It grows a foot long and can live for 20 years. How did you not know????
Jk it's a freaking goldfish take it to the pet store and yes the pink indicates a female ram.