Endler male/female ratio

I have a small tank just 3.5 gallons and had no intention of breeding. But when I wanted to buy another livebearer to add to my existing male red fire endler the store would only sell me a pair. So now I have 2 males and 1 female. Will this be a problem to have the 3 together in one tank?

No, you are just going to have randy little sods trying to knock her up
I have 3 girls and the boys (well one naughty one mainly) chasing around the girls shaking his tail feather.

The female will be stressed having 2 males pestering her all the time. And soon there won't be room for all the fry she'll have, and the fry they'll have.

Endlers may be small but they need a bigger tank than 3.5 gallons, I'm afraid. Minimum tank size for them is 18 x 12 x 12 inches.

From my own experience, if they´re real endlers, they don´t really have to be at a 1m: 2f or 1m:3f ratio. Not all livebearers should be kept at a ratio with more females than males. Real endlers are doing fine as well at a 1m:1f ratio or even with more males than females. Same goes for wild guppies. Hyrbid endlers are a bit more tricky. It depends, do they tend to have the guppy (male fancy guppies harass females more than male wild guppies) or endler behavior?
If the space in a tank is not sufficient, the harassment of the males towards the females "can" become more.

I do have multiple tanks where the livebearer ratio counts more males than females. And it's harmony in those tanks. You just need to know what to do, what kind of livebearer it concerns and will the space in the tank (includes decorations, plants or whatever) be sufficient that the harassment won't be triggered that much.

Just a general note overhere:
It would be an incorrect information to say that more females should be around than males at all times as a steady rule for all livebearers. For that would mean that there's a lack of knowledge when it comes to the livebearer knowledge. For most people only refer to the "Big 4", which refers to the guppy, molly, swordtail and platy. There are way more livebearers with other needs, care and behavior. And even within the Big 4, there are a number of strains that will be different in needs, care and behavior as well. Especially, when people are used to the commercial livebearers, I do understand why they may think differently.

As far as I'm aware, all the endlers bought from typical fish stores are hybrids; thoroughbred endlers are usually only available from specialist breeders - someone like you

Thank you for the replies! I don’t know what behavior to look for, this is all so new to me and was just supposed to be a small little tank for my kids to look at. Lol but it has become so much more to me! And now I’m so invested!
I have attached pics of the two males. They are so tiny and my red fire hasn’t grown much so I would assume it’s enough room? I’m not sure how much cover they need but I feel like I might have enough ? I’ve also attached a pic of the tank.
all fish were bought at a small local fish store but not petco or anything like that. I definitely wouldn’t keep the babies. I would bring them to the fish store lol.
I had a smaller tank running already so for now I added the female in there until I figure this out but I feel so bad her being alone lol.

Just to warn you - most fish stores will not take fry until they have grown to a size where they can sell them, so you would have to keep them for at least a couple of months.