Guppy - fatty or pregnant?

[Chickadee55 75]

This was my little stowaway guppy that I posted about a few months ago. Just a little squirt at the time, and now look at her! I call her Big Bertha because she's so much bigger than the other two, always in the thick of things, and always eating. Now I'm thinking she may be pregnant. I tried to get a head-on shot, but she wouldn't cooperate. Trust me, she looks like a balloon. So is she?

The other two are colorful. Does this mean they are always males? Do I have endlers or guppies? I told the fish shop guy to give me "small, plain guppies" and this is what I got. Obviously I have a lot to learn about guppies

I recently got 4 more that are still small. One was just a fry. When I released them into the tank, Big Bertha immediately went after the fry and tried to eat it. It darted out of her reach just in time. I caught it and put it in the shrimp tank for now, until it's big enough to go back in with the other fish. It's growing like a weed already.

 

[Tomsfish33 32]

Pregnant and looks to be due within a couple days if not sooner.
The other in pic is male 100%. I would guess he is an endler, but I am not an expert on them.

 

[Chickadee55 75]

These guppies are in a tank with 6 pristella tetras and 4 cories. Do the babies have a chance at survival? Not to mention from Big Bertha herself.

 

[Jennet54 112]

Is there any moss in there that the fry can live amongst? If not, then mom needs to go in a breeder tank with slits for babies to fall through for some to survive.

 

[Chickadee55 75]

Is there any moss in there that the fry can live amongst? If not, then mom needs to go in a breeder tank with slits for babies to fall through for some to survive.

Yes, I have two pieces of driftwood in there with java moss growing on them. Lots of nooks and crannies in the driftwood. Some plants, but I wouldn't say heavily planted. I'm afraid this will be a case of either survival or fish food, because I have no other tank to put them in. My only other tank is overrun with cherry shrimp babies. How did I get here?

 

[emeraldking54 105]

They're black bar endlers. And yes, she's pregnant. But endlers are also guppies but not the same species. Pure endlers (Poecilia wingei) are also guppies just like Poecilia reticulata (most known as a guppy). There are a few more that are guppies but all of these guppy species (so, no guppy strain) are related and differ in DNA from one another.
Besides the fact that they're related, their sexual organs are also compatible with another which makes an actual mating possible. I wouldn't use the genus as a fact that they can crossbreed for there are members of the same genus that can't crossbreed with guppies. And also don't have compatible sexual organs to make an actual mating possible.

 

[GaryE35 33]

I find breeding traps pretty stressful for fish, and they will fall out as lunch for the tetras. You can try golf ball sized rocks on the bottom of the tank, as that has increased fry survival here. But while Pristellas are one of my favourite fish, they have excellent hunting skills.

 

[Tomsfish33 32]

I used broken terra cotta pot trays on the bottom along with mosses or better yet subwassertang for fry to hide in.
I would also net fry I wanted out to a fry tank.
Findin and catching the fry is one of my favorite memories in my fishroom~!
You don't need to worry if they get eaten as this is just the beginning for them.
My super reds have done the same in a tank with others that eat the fry when they can.
I have over 30 super reds now that have managed to live and are now breeding themselves.
A sort of never ending food chain ala nature.

 

[GaryE35 33]

If I can offer some advice, don't ask her if she's pregnant or just fat.

 

[Chickadee55 75]

Thanks all for this very helpful info. Glad to know the name of the endler that I have. I took one of my cholla woods from my shrimp tank and put it in there. I set it on top of the driftwood nestled in the java moss. Think this is enough? I don't doubt that my pristellas will try to snack on the fry. They are feisty and alert little fish, but I love them.