Originally Posted by MagicWings
For a 10 gal tank which I plan to have guppies and maybe a corydora or two, what type of plants would you recommend? I have regular light (15 watt I think?) and I keep it on for about 12 hours a day.
I went and found the tag that came with the plant. They have here that its a ludwigia palustris or a "water primrose" found in North America.
Ludwigia is a genus of aquatic plants, so that's OK. I've never noticed the "Primrose" common name before... This is a stem plant, we have the more common species in our profiles where you can read more, click on the shaded name.
More plants could include Corkscrew Vallisneria. You haven't mentioned water parameters (hardness and pH) but livebearers need medium hard or harder water with a basic (above 7) pH, so I'll assume this is what you have out of the tap. Vallisneria will do very well in that. And it has the benefit of being fast growing and a substrate-rooted plant so good on the substrate bacteria issue.
Floating plants like Water Sprite or some of the stem plants left floating are always good.
On the light, is it a fluorescent tube or is the fixture incandescent (screw-in bulbs)?