A Java Moss Tile, or at least a Glass Islands Java Moss Tile is about 2 inches in length and ranges in thickness between 1/8" and 1/4". The actual length of the moss can range between 1/4" and over 3" (or more) and is usually stated in the sales description for any given tile.

There are two shapes of Java Moss tiles being offered at this time, hexagon (top left) and square (as seen below). While either one can fill just about any needed position within a tank or bowl. The hexagon seems to offer a better foreground, stand alone option while the square tile is great for edges, corners and row clusters.

This is not a clump of moss tied to a tile but dozens java moss plantlet's placed on a tile and held with nylon netting similar to Takashi Amano's methods for anchoring riccia and similar plants. Over a slow growing process of several months in relatively cool water, very low to no nutrients the plantlet's form the mass depicted in the provided picture.

Because no hyper growth methods are used the moss should adapted quickly to any suitable environment and all the materials used in the process are completely aquarium safe.

While these tiles usually do not start out with a lot of moss on them their pre established growth and excellent growing potential make them an attractive ornament in almost any aquatic environment.

For aquarium use the tile is typically fully immersed, sitting quite well on the bottom. The tile can be pushed almost completely into any sand or gravel but it would be wise not to cover the top of the tile since this would eventually kill the moss strand tips that connect the moss to the base of the tile. See below picture

For terrarium use we recommend the tile sit in no less than an inch of water. When growing out of water it will generally grow slower but fuller. If you are interested in growing the moss this way it is best to start it submerged and then let it grow out. Java moss that is grown submerged (like this tile) and then suddenly brought to the surface tends to dry out because is membranes have not yet adapted to the new environment.

Clean, slightly moving water will go a long way to keeping your plant healthy and water changes will typically trigger new growth. We hope you enjoy this plant as much as we have.