"Kay" wrote in message
...
In article , Brian
--- writes












Tap water might be deficient~~ Try more of the original pond water.
Have
a large stone in the tank that protrudes above water level.
Remember that very,very few tadpoles do make it to maturity. Much
fewer than one per mass of spawn.

But that's more from predation than simply failing to grow, surely?
--
Kay
"Do not insult the crocodile until you have crossed the river"
______________-
You are correct ~~ the numerical absolute is not related to their
potential for growth. Quite simply because frogs live for years then it is
only needed for them to reproduce, just themselves over those years,to
maintain a constant. The demise of the thousands of potetial frogs must have
many reasons.
Best Wishes Brian.