ISTA Cultivation Discs M are twin layer discs designed for holding plants & substrate. Especially good for moss, crystal wort and other front-set water plant cultivation. Unique-designed platform allows water plant to grow end become well-attached. Product Features: Twin-layer: The bottom layer can be filled with gravel and soil, which lets the cultivation to sink naturally down to the bottom of the tank. Moss and crystal wort can be planted on the upper layer. The cultivation can be placed into various layouts based on its special shape design, which makes your aquascaping more than natural ever! Instructions: Open the flat cover of the bottom layer and fill with gravel or soil. Cover it back tightly. Open the curve cover of upper layer and fill with moss or crystal wort evenly. Cover it back tightly. Layouts: To make the cultivations in straight-line shape, put them into opposite directions one after another. To make it as curve shape, simply place the cultivations into same directions, the curve will show up! They could also be placed as S Shapes.
