I use the same hides. The smallest one works until about 100-150 grams, but the next size up I find is too big. I rotate between reptile basic hides and the exo terra caves. When they start to lift their hides I go to the next size up on the other company product. I find that fills in the gaps where as there is a huge jump between sizes in either company between their own products. (I hope that made sense.. I'm exhausted hahaha)

I'm using the large reptile basic hides for my girls 1500grams-2000grams, but it's too small for my 2200gram spider lady.