Cryptocoryne. We have also been planting Cryptocoryne
in all the lakes and ponds with little success to date. These
plants were received from Peter Moll who had imported them to
sell to the aquarium trade. He gave us two batches, one of which
was planted at Samaan Grove while the other was kept in an aquarium.
Most crypts do not like a lot of light and prefer clear water.
They will also grow in moist soil so it is difficult to understand
why we have not had better results.
Amazon Sword Plant, Echinodorus amazonicus. So
far we have had tentative success with Amazon sword plants. The
submersed leaves seem to hold silt and have not grown well. We
transplanted them in Lake 0 and are now starting to see better
Hair grass, Eleocharis acicularis. On a visit
to the Nariva Swamp in 2002, we had lunch at one of the villager's
homes and were fascinated by a pond in his back yard. The pond
was completely covered with hair grass seen in the photo below
left. He claimed that it was filled with only rain water which
was the reason it remained so clear and clean. Ten feet away
there was a much larger pond and the water clarity was terrible.
In our opinion it was the hair grass that produced the different
To commercial lake managers, the genus Eleocharis should
be avoided. Most of the species are problematic weeds that clog
waterways. We plan to use this grass at the very end of the wetland
system just before the fresh water enters the sea. This is where
it grows in Trinidad. We have never seen it growing in Tobago.