Hygrophila 'Compact' aka "53Baby"
TFK UK Disclaimer - Tom gave this one its common name - we're very sorry.
A very compact variety of Hygrophila corymbosa, with the leaves set close to the stalk.
Forms numerous side shoots, enhancing the compact appearance. The leaves are a dark brownish-green, when the plant leaves the nursery, but after a transitional period in the aquarium they turn pale green and silver-white on the underside.
In strong light, the newest leaves may become reddish brown and in dimmer light, the oldest ones die away after a while. New side shoots often forms to replace the old ones.