Mosquito fish don't have eggs, they are livebearing fish. They were
probably just hiding amongst the plants and debris in your
container...that's what mine do.

--- In homemadebiospheres@yahoogroups.com, "Bill Keiser" <bk2@...> wrote:
>
>
> > what will the guppy eat?
> >
> > ----- Original Message -----
> > From: smartboy5765
> > To: homemadebiospheres@yahoogroups.com
> > Sent: Sunday, April 06, 2008 4:58 AM
> > Subject: [Homemade Biospheres] will this last long?
> >
> >
> > I put 1 male guppy and an anubius nana plant in a 1.6L jar. I
picked
> > one of my uglier(i have hundreds) guppies and took water from the
> tank
> > he was in. I left air room at the top to allow for exchange of
gasses
> > from the water to the air and then sealed it. Will it last long?
> >
>
> i've had small gambusias, (mosquito fish) live in an open gallon jug
> for months. actually, they appeared spontaneously months after i
> collected the wild stream water. at first one appeared, then 4 or 5
> more. i'm not sure if the eggs had been dormant all that time, or what.
> i doubt they would have survived with the jar sealed, though.
> i have had a sealed quart jar with amphipods, cyclops etc. and
> hornwort survive for 5 or 6 years in a windowsill.
> bill keiser
>