Bolbitus heudelotii is a beatuful fern plant that must only be grown to wood or rock. In this case, it's been grown on a piece of driftwood for many months to ensure that its roots have anchored down.
This aquarium plant prefers lower light conditions due to its growing speed so avoid placing it under bright light. The occasional trim will be beneficial to keep the fern in shape.
Apart from that, very low demanding plant, great for beginners and because it's grown on driftwood you can literally place it where ever you like and if you change your mind, simply move it elsewhere.