Force feeding should only be done under the following circumstances:
1) The gecko is in dire, DIRE need
2) You actually know what you're doing.
Force feeding is not only a dangerous physical risk to the animal, but extremely emotionally traumatizing.
Leos and other captive herps will stop eating every once in a while for a plethera of reasons.
In particular, during the winter, many leos will greatly reduce their food intake, or stop eating all together. Even if you keep the temps the same or close to it. They know these things. This "fast" is normal.
Other times leos will get bored of a certain food. Or they don't like something you're feeding them.
Or they've got some serious medical problem.
These animals are designed by nature to go for long periods of time without eating if it has to happen. So there's no need to start panicking, even if they don't eat for a few weeks.
Force feeding does, very periodically and in specific cases, have to happen. I had a blind baby hatch and this was the only way he would eat. Other cases, such as a severly neglected leo with a toothpick for a tail, who is so close to death that he doesn't have the strength to eat, will merit force feeding. But it is a dangerous risk and rarely the best solution.
In particular, on these forums where many people are young, inexperienced and uninformed, I think recommending force feeding is a dangerous move. If you're concerned for your leo, take him / her to a vet, like the starter of this thread did.
But I would NOT recommend it as a solution in 99.9% of cases.
Joel
(To the original poster ... I'm not saying what you did is wrong, esp. if that was on the recommendation of your vet. I'm just saying that it should not be applied as a band-aid solution to a problem which is most likely unidentified anyway!)
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2.3 Leopard Geckos
0.1 Ball Pythons
0.1 Okeetee Corn Snake
1.0 Blair's Phase Gray Banded Kingsnake