Aquarium habitat for bearded dragons?

Sand is suitable, however beardies need to be in a Terrarium, not an aquarium. An aquarium has no doors or places where you can fit lights and heaters ect.

Well I hear every one else advising you to use sand, and you probably could without trouble, but I've read a lot of places that sand can cause impaction, and the beardie can die. They make special Calci sand that is supposed to be digestible, but I've even heard of people having trouble with that. I use cage carpet in the bottom of my beardies cages, but it is a pain to clean, I have under the tank heaters in both cages now, and to keep them from getting their bellies burnt I use that. Some people use newspapers and paper towels though, and I read on a forum somewhere that you can use ceramic tiles. You can go into my profile and read some of my other bearded dragon answers for more information. If you've got an iguana now, you shouldn't have too much trouble with a beardie. They eat the same food pretty much, and both like it hot. Beardies are prone to metabolic bone disease though (just like osteoporosis in humans), so they need vitamins sprinkled on their food. I use regular powdered vitamins twice a week, and Repti-Cal Calcium + Vitamin D3 once a week, but that's for my adults, and as babies they need more. They'll need special lighting to be able to absorb the vitamins. They need UVB and UVA lighting. Natural sunlight is the best, but the UV rays can't penetrate glass, and get into aquariums, so it's best to get the special lights to go on the top of the aquarium. They are a lot of fun, and extremely tame! My 6 year old daughter plays with ours all the time, and neither one of our beardies have ever gotten aggressive with her. She used to carry our oldest one around in a basket playing house with it, and pretending it was her baby, and she's only 6, so she's not always as gentle as she should be. Hope this helps!

Sand is never a good substrate for bearded dragons. They tend to taste everything with their tongue and though some people have never had problems, I find it much easier to use something that will never be a problem.

I prefer slate tile for beardie enclosures. They are easy to clean, they help keep the dragon's nails trimmed and they are closer to natural than sand. In the wild, beardies live on rocky soil, not sand.

We used sand in my dragon's cage for years. He enjoyed it and I loved the easy clean up.

Just try to make sure the sand isn't too ultra fine so there are no problems with him breathing it in.

I also used an "aquarium" than I turned into a "terrarium." We just bought a top for it with the right holes and went to work. G

Sand is good for when their older but when their younger they could try eating it and choke.