Hey y'all,

I'm planning on building a 1/3 water 2/3 land, false bottom planted terrarium for firebelly toads. I was planning on using eco earth coco fiber as my substrate, but I've been told that this is not a very good substrate for growing live plants. So, I decided to use ABG mix, which is great for plants and is often used in dart frog terrariums. However, I've read that this type of substrate is an impactation risk for FBTs.

Can someone recommend a substrate that would be suitable for growing live plants, but would not pose an impactation risk to FBTs?