Pregnant Guppy Swimming Up And Down Tank

[DaveyG]

Hi

I have a pregnant guppy - she's new to the tank but obviously pregnant and I'd say a week away from giving birth - and she is almost constantly swimming from the bottom of the tank to the top and repeating over and over again. I have a 200 litre tank which is about half a meter tall so lots of room.

Could it be stress from being pregnant? Is she about to give birth?

Tank parameters are fine (0 ammonia, 0 nitrites, 5-10 nitrates). Tank is mainly live bearers and has 6 female guppies 2 male guppies so that ratio should be fine?

I'm hoping it's not serious!

Thanks

 

[jmkgreen]

Years ago my molly was diving up and down the tank before she practically exploded with fry. Only time that behaviour was observed.

 

[DannyBlackbourn]

My female Guppy does this all the time...

Mainly after feeding or a water change...

The thing is she looks pregnant to me also... and she still does it...

I don't think its serious. But I'm a newbie so sorry if I'm not much help.