Here are 6 easy steps to build a DIY waterfall in your terrarium 1. Put water pump at bottom of your terrarium. 2. Add 2-3" of HydroBalls. 3. Place Mesh on top of the HydroBalls to cover the entire bottom. Cut a small hole in the mesh & feed tubing through the hole. 4. Cover mesh with Eco Earth, then place the Mopani Wood inside the terrarium. Direct the waterfall to cascade over the wood. 5. Decorate! 6. Fill the base with water about 2" of water. Plug in the pump and enjoy!
Surface aquarium plants are particularly useful: They leach nitrates (fish waste) directly from the water column via their beautiful trailing root systems, and they provide a sense of safety and shelter for your fish. But beware placing them in aquariums with a H.O.B. filter, as the strong downward current created by the water flow will continually drag surface plants down, damaging their roots and eventually killing them.