I have kept and bred many hundred of leopard gecko's since my own finding and learning of the on this forum some 10 or so years ago.
I see all these post anyime I visit back about weight loss and sickness being internal parasites. Leo's wont eat, won't drink, skinny, lethargic... etc.
Most pet shop leo's I see fit the qaulifications before they are bought.
1. A leo of more than 1 week old should feed readily. If not by 2 weeks subject is culled.
2. Any surviving subjects should be gaining tail weight by 10 weeks old "showing mass" or weight gain.
3. If not 1 or 2 cull the subject.
In my oppinion in the number and years that leos's have been captive bred all internal parisites should have been abolished years ago and unless a large amount of people are selling wild game fed leos then I can't really see internal parasites as even being a threat of the leopard gecko today.
Out of all the leos I have raised a good percent, probally 1/3 have died of parasitic symptom causes.
Consider with our incubation and care techniques today alot of potential non hatches or natural selection candidates actually hatch and survive to be potential pet store parasite so calleds.
With the captive bred programing that leo's have today I se parasites as a myth.
Buy a good strong leo, feed it well, heat it as needed, provide water and they will lay around all day and bask,breed and be happy.
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"Why is it we treat the earth as if we have a spare in the trunk"


