Hey, so I have three FBT's and was wondering if the ABG Mix (4 Quart/1 Gallon) substrate from Josh's frogs would be safe for my toads. The ingredients are charcoal, milled sphagnum moss, fir bark, Josh’s Frogs False Bottom, and peat. I know that peat, sphagnum moss, and Josh's frogs false bottom but what about the charcoal and the fir bark? If the charcoal makes it's way into the water, would it harm them? I am thinking of using this soil to plant some Spathiphyllum plants and Philodendro plants and thought of using a nutrient rich soil with peat as that is what it said to use. Please respond soon! Thanks!