Plain old ivy will grow lots of roots
in water. I've grown lots of them in
these test tube type vases in a sunny
window. Have not tried them in with
critters. I notice that where ever the
ivy touches the water (while growing
alongside my pondsills) it will send out
roots.
My aquatic frogs, who live in a pondsill,
(aquatic habitat that lives on a kitchen windowsill
for sun) have had to be insulated lately
with ovenmitts as it is sooooo cold outside
that window!)


ka30p
http://www.geocities.com/watergarden...dors/home.html