I just checked the plants from Mike I got last Friday. I wanted the L. Peruensis but he was out of them so I order boardleaf Ludwigia. I got them Friday and already today roots have started to grow. I will plant them next week.
The light that I have is the one that came with the tank kit that I bought. It is an 8000k bulb. I do not know the wats. I do have gravel in the tank. The gravel depth is about 1 inch so not very deep. By planting the stems I ment that I pushed the bunch into the gravel a little bit. That was the directions that I got from Mikeswetpets. I do not have rocks in the tank other than the gravel. It is a black gravel with multi colored pieces mixed in. It is just standard petco gravel.
Someone mentioned CA glue. What is that, where do you get it and if it is hard to find would aquarium silicone work?
Most tank kits do not have a high enough wattage to grow plants successfully. I've also found that a lot of stem plants are somewhat demanding as far as lights and fertilizers. Plain aquarium gravel may not have what they need. You can try getting some fertilizer tablets to put down in the gravel around your plants. Or look at some of the plant substrates such as Florimax or Flourite. Good luck with your plants! They make for a beautiful tank if you can stay patient while you learn the best way to grow them.