I tried posting in the exotic pet section and didnt actually get many helpful responses. Soon I will be moving and when I do, I want to upgrade my axolotls to a bigger tank. I want to heavily plant the tank and I have experimented with many different substrates. My worst results(current axol tank) was with sand and my best was with potting soil covered with a layer of gravel.
So Im curious, what do you guys recommend as the best substrate to grow plants, while still being safe for the sensitive axolotls?
So Im curious, what do you guys recommend as the best substrate to grow plants, while still being safe for the sensitive axolotls?

