Water Gardening: Please help., 1 by zest

zest wrote:
Look what I bought today!!
I am all pleased with this kit.
Besides the bulbs there is pebbles, clay, fertilizer tablets and pot.
It costed around 12$ dollars for each, do not it expensive, as all is here, just have to ad a bit of earth.
Decided not to use the calla after all, it is to big and also because I fell in love with the sagittaria.

The last thing missing is a oxygen plant, looking for one that is totally or almost totally under water. Will like to keep it a bit simpel and that you are able to se the most of the water.
There is a jungle out there, and can not find what I am looking for.
What size plant would be the best.
Monica