How to choose substrate for desert micro geckos

If there's one thing I've learned from raising desert species, it's that not all sands behave the same.

They may look very similar on the packaging, but in the terrarium, they can yield completely different results. I've realized this after trying different substrates over the years.

When sand becomes a problem

For a while, I used Dr. Raptor sand, and unfortunately, in my case, it wasn't the best choice.

The species I keep receive light evening mistings, and after each watering, this sand tends to compact, forming hard slabs. The problem wasn't just aesthetic, as many microgeckos love to dig, move the substrate, or even cover themselves in sand. With such a compact substrate, all of this becomes impossible, not to mention the females, who inevitably have to dig to lay their eggs.

I found myself opening the enclosures and manually breaking the slabs to restore a bit of naturalness to the substrate, and after a few months, I realized I had to change.

An important clarification

This doesn't mean it's a bad sand; it just wasn't suitable for the species I keep.

I can imagine several contexts where a firmer substrate could actually be an advantage, such as for species that burrow little or when mixed with other materials. Every setup and every species has different needs.

The sand I use today

Studying the animals before the substrate

Ultimately, I believe that the choice of substrate shouldn't be based on the brand, but on the animals themselves.

If a species likes to burrow, the substrate should allow it; if, on the other hand, it prefers more compact soil, then a different solution will likely be needed. The important thing is to understand what a given species finds in its natural range and try to replicate those conditions as closely as possible. In my house, Habistat continues to be the choice that best reflects the natural behaviors of the species I keep, and that's why, at least for now, I don't feel the need to change it.