Question
I bought a box of "ammo-carb" at the pet store instead of only activated carbon for  a layer in my terrarium.  (The ammo part absorbs ammonia.)  I am worried I need to take the terrarium apart and remove this product.  My question is will this product remove nitrogen components away from the plantsor will it serve as a "nitrogen bank"???

Answer
Hi Susan, I'd leave it in.  It will probably lock up ammoniacal nitrogen, but not nitrate nitrogen.  If you feed with an organic like fish emulsion, you should see no effect.  If you use products like Miracle-Gro, some ammoniacal nitrogen will be absorbed through the foliage and some through the surface roots.  Any that makes it to the ammo carb will probably be lost.  But these products have nitrate nitrogen also, so I think I'd just leave it alone.  Jim