Soil for Grasshopper Terrarium?

My mother was weeding and she found a grasshopper laying eggs. Before she saw the grasshopper she somehow uncovered the area where the grasshopper was laying her eggs. I didn't want them to be totally exposed so I put them in an 10 gallon aquarium I used to keep my rats in. I washed it out and put dirt on the bottom. I also added some grass, sticks, and rocks. I then carefully put the eggs into the aquarium and buried them under a little bit of dirt. After that I did some research on how to care for grasshoppers. I think I know enough to care for them now, but I cannot find the answer to this question. What kind/brand of soil/dirt should I put in the aquarium? I will carefully change the soil if need be, I just need to know if I should change it and if so, what is a good brand that is safe for grasshoppers? Thank you for reading and/or answering.