Water Sprite

Ceratopteris thalictroides.
This plant normally grows fast, but the addition of CO2 may be necessary to promote growth. In small open aquariums it can grow out of the aquarium and form beautiful surface leaves. The finely branched leaves are very decorative and provide good contrast to other leaf shapes. In good light Ceratopteris thalictroides grows fast and helps prevent algae by consuming large amounts of nutrients. This makes it a good starter plant in small aquariums.
Height 15-30 cm Width 10-20 cm Light high-very high Temp 20-28'C
pH 5-9 Growth VERY FAST Demands EASY
Photo by Dusko Bojic.
I use plants from www.tropica.com

Java Moss

Vesicularia dubyana.
Java moss is the common name for Vesicularia dubyana, a hardy plant which makes few demands on the water or light. Java moss grows willingly on any surface, so it is ideal for decorating stones and tree roots or concealing installations in the aquarium. Attach the plant with a piece of fishing line until it has gained a hold on the bottom. If its growth becomes too luxuriant, it can be pruned with scissors. In breeding aquariums Java moss is a wonderful hiding place for the young fish.
Height 5 cm width 5cm Light very low-very high Temp 15-28'C
pH 5-9 Growth SLOW Demands VERY EASY
Photo by Dusko Bojic