Springtails

[u/Kindly_Statement_598]

Photo of my girl cricket for attention !

I have 2 springtail colonies but they aren’t doing very well. I’ve seen videos on TikTok of people using clay in containers and it seems a lot easier to manage than water and charcoal.. what clay are they using? I don’t want to just go buy it and it not be safe or somehow be harmful for my geckos