Golden Gate Geckos
Mean Old Gecko Lady
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Here is a very graphic example of what 'digestible' calcium sand does to the intestines of a leopard gecko: http://homepage.mac.com/exoticdvm/reptile/PhotoAlbum181.html
Golden Gate Geckos said:Crushed walnut shells are very sharp, and can cause damage to the intestines of the geckos that ingest it. If having a nice decorative display tank full of calcium-sand is more important than risking your gecko's health (and even their life), then ceramic tile and/or slate is the best (and safest) option. I have seen some very cool set-ups with those as substrate.
Nastynotch said:Like i said before, If compact is a big deal..its more chronic if anything. your not going to kill your leo if you set him in walnut sub. for a night or two.
Kotsay1414 said:I don’t mean to cause a stir, but is there any stats for the number of Leo’s that get impaction?
BalloonzForU said:Where do you get impaction is cronic from?
But i really think that adult geckos have alot more common sense as people do when they grow older. and if they do consume calcium sand its more proper to digest.
Golden Gate Geckos said:Nathan, I usually do not get into substrate debates, but you are misinformed about calcium carbonate sand for leopard geckos. While calci-sand may be appropriate for some reptiles, leopard geckos have a very short digestive system, and the calci-sand cannot dissolve completely in their GI system. Instead, it gets sticky and clumps together, and over time the intestines become impacted with the material. Death by intestinal impaction is a very violent and excruciating death.
Secondly, calci-sand is made of Calcium Carbonate... which is the same material that calcium powder is made of, only the powder form is so fine it is easily digestible. But, calcium carbonate is the same thing that Rolaids are made of. Rolaids reduce gastric acids. When the geckos strike at food prey, they naturally ingest the sand, and their entire digestive system can get full of it. So, not only are the intestines being blocked by a sticky calcium mass, but the gecko's digestive system cannot function properly with the reduced gastric juices. This means that it cannot digest it's food completely, which further complicates intestinal blockage.
Just because you see geckos on calcium sand that "look OK" does not mean that they are not at risk of developing impacted bowels. It means they are still alive, that's all.
Nathan, I got my BS from San Jose State University in Materials Science, and my MS from Berkeley in Organic Chemistry. I have been breeding geckos almost as long as you have been alive! I have conducted MANY experiments with Calcium Carbonate and it's solubility properties when 'dissolved' in acid AND base. Here is a case study:To get the fine 'sand' figure out of the calcium they use you have to step beyond just calcium. Ca-(C4/H6/NO4)-R-(C/O/OH) molecularly that gives you 'sand' in a carboxyl group. Carboxyls are polar-covalent. If anything on a molecular scale the sand is polar and soluble. so it 'should' scientifically be digestable.
covalent bond is broken by gastric acid. comes out the other end.
gastric acid is a amino acid. acting as a enzyme it breaks down the carbon and the calcium in the sand.