"Dave Millman" wrote in message
...
0rion wrote:

i'm looking for a very hardy type of plant that doesn't need special
substrate or a lot of CO2 in the water. something that floats,
preferably. a
floating plant would also do pretty well considering it would be right
below
the light...

Water sprite / Ceratopteris sp.
Hornwort / Certophyllum demersum

Both are widely available, easy to grow floaters.


how about java moss on my driftwood?

how long would it take to cover the entire tank, and it is controllable?