Most of the plants we use spend most of their time out of water in nature. The grow bulbs would work fine but I don't think you will see enough efficiency benefits to warrant the aesthetic sacrifice. You can google university docs for how light wavelength affects photosynthesis. Chlorophyll a and b are the most dominant pigments/photoreceptors in plants(coral too actually). They absorb most of their energy from tblue to uv and from the deep red wavelengths. They don't absorb much in between. That is why plants are usually green. That said, in practice, any 6500kish light source will grow plants just fine. They must be able to adapt or something.
If marine is really all that is available to you, a 10,000k marine light would work well for plants. Just be careful about too much PAR. You could also get a marine focused T5HO fixture and put planted tank bulbs. I think most people prefer a warmer light for plants. It's really an aesthetic thing though.
For more important than spectrum is intensity per your setup.
If marine is really all that is available to you, a 10,000k marine light would work well for plants. Just be careful about too much PAR. You could also get a marine focused T5HO fixture and put planted tank bulbs. I think most people prefer a warmer light for plants. It's really an aesthetic thing though.
For more important than spectrum is intensity per your setup.