Reptile & Amphibian Forums

There's a gecko at my work that everyone cares for. The thing is, his weight keeps fluctuating. The most he's weighed was 40 g, then over the next few days, he's dropped to 35 g. Today, he's gained 0.1 g. This constant weight fluctuation has me concerned.
How do I know he's eating well? We feed him a few gut-loaded crix every night, plus a small lid with some CGD in it. I've tried him on mashed banana (he licked it a few times) and tomorrow, we're trying mango.

I'll do my best to get some pics and hopefully you guys will be able to tell me if he looks ok or not.

Last question: What are some of the best substrates to use for these guys?

Thanks everyone.
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1.1 Mali Uromastyx (Ra, Isis)
1.0 Satanic Leaf-tail Gecko (Diablo)
0.1 Satanic Leaf-tail Gecko (R.I.P. Samael)

I use damp peat moss as a substrate, it looks good and holds humidity, but paper towels as a substrate are the easiest to clean.
You don't need to feed crickets every night if you use CGD, acually, I don't think you need to feed crickets hardly at all with CGD. I can't tell if its under wieght though until you post pictures, but if you dont' think its eating enough, you can try peach babyfood, mine love it.

Peat moss is a good substrate, as well as anything like it. Such as the bed a beast things. Also, paper towel is a really good substrate. Don't go with the wood chips or anything like some people use. Alot of people say there is no problem with it and they never had a problem with it, but alot of times the gecko can actually eat the substrate and become impacted. Why take a chance that doesn't need to be taken? The weight thing could be as simple as, when you weighed him one day he was full of food, when you weighed him another day, he went to the bathroom. I've weighed my cresties one minute, then they go to the bathroom and I weigh them again the next and they have lost a couple grams. It's probably not a huge deal. Just keep an eye on it.
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1.0 savannah monitor
0.4 leopard geckos
2.2.5 crested geckos 2 eggs
1.1 bearded dragons
0.1 common boas (BCI)
1.0 ball python
0.0.1 western hognose
0.1 kenyan sand boa
0.0.1 golden tree frog
0.0.1 fire belly toad
0.0.1 Sulcata tortoise
0.0.1 desert hairy scorpion
0.0.1 texas millipede
1.2 sugar gliders 2 joeys in pouch
0.1 chinchilla
2.0 cats
0.0.1 African Giant Black Millipede
0.0.1 Pac Man frog
A few fish
LOTS of roaches

Matt Smith

.. well a simple conclusion could be the fact that you are weighing him after he eats or before, you want to weigh him/her befor everyfeeding to get a more accurate reading... hope this helps