Shorty,
I suspect it is climate related. It must be, because as I mentioned, in the pond we call Methusela (for obvious reasons) a sustained, vibrant and never stocked population of Gambusia exists.
I can't say that I have lined them both up at a starting line and yelled go...but if there were a race between a FH and a Gambusia(in my southern ponds), the Gambusia would win every time...except they never swim in a straight line.
Of course, both would be promptly eaten when they crossed into water more than a foot deep.
It is interesting that sellers charge more for Gambusia than FH's. I wonder why that is?
Gambusia appear to be very easy to raise, very prolific. Maybe its supply and demand?
Since Deb's Fish Farm is the only one that I know of on this Forum that sells and recommends them, maybe she can shed some light on the question.
