Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to create the ultimate woodland terrarium [title] Gather and all the materials needed. [step] Organizing them can help, and one of my favorite ways is to categorize them, such as by the material that they are made of. [title] Pour about 1 " of gravel, hydroton, or other drainage.

Ending1: [step] Gather as much gravel as possible; the less, the better! Your space will be full, after all, your terrarium is probably rock bottom, but that doesn't mean that you can't add ponds and a drainage system. So make sure there are enough of them. Ending2: [step] This level of substrate will help keep the plants from soaking up too much water. [title] Layer about 2 " of' woodland mix' substrate over the gravel. Ending3: [step] Put this into the terrarium as a compress that helps to stop evaporation from any water in the area. But always remember you will eventually fill the terrarium this way. Ending4: [step] The pot needs to be 20 cm in diameter, so that the plants can sway around inside the container. Don't worry if it takes more time, as it will eventually be ready soon! [title] Add some rock.

Answer format: ending1/ending2/ending3/ending4