The Flora Sun bulbs are very good plant bulbs and they bring out the red and blue colors.
mudboots suggested the excellent T5HO Midday 6000K bulbs, but they are not available in T8.
Years ago, I used to mix Flora Sun bulbs and Interpet's Triton bulbs. They worked very well together and looked great, but the Tritons are hard to find now.
You may want to mix your Flora Sun pinkish-blue bulbs with 1, 2 or 3 other K rated bulbs. The Floura Sun by itself doesn't look very natural when used alone. When mixed, they are a hard to beat T8 bulb.
From: http://www.zoomed.com/db/products/Se...24&Search.y=20 Flora Sun: http://www.zoomed.com/db/products/En...tzOjI6IjIwIjt9
"This high intensity lamp with peak emissions in the blue and red regions serves to maximize the photo biological processes in plants. The emission spectrum closely resembles the absorption curve of chlorophyll-A, promoting maximum photosynthesis, ideal for planted aquariums, or terrariums. Also great for shy fish species such as dwarf cichlids, discus, etc. Use in conjunction with Ultra Sun or Tropic Sun.
Zoo Med's line of fluorescent aquarium lamps are made in Europe for ultra high quality, color, and longer burn life. ..." Ultra Sun 6500K: http://www.zoomed.com/db/products/En...tzOjI6IjIwIjt9
"The Ultra Sun is a 6500K high intensity trichromatic full spectrum daylight lamp. With a CRI rating of 98, it provides excellent color reduction for optimum viewing of your freshwater or marine fish and live corals with a balanced full spectrum of visible light and UVA. Promotes photosynthetic processes in plants and marine algae. Ideal for all freshwater and marine fish as well as reef tanks. ..." Tropic Sun 5500K: http://www.zoomed.com/db/products/En...tzOjI6IjIwIjt9
"A 5500K bulb that is ideal for freshwater fish and live plants. The Tropic Sun is a full spectrum daylight lamp, which simulates natural sunlight for optimum aquarium viewing. Our Tropic Sun daylight bulb brings out the natural beauty of fish and plants and is our most economically priced bulb. ..."
You may even want to mix in an Ocean Sun 10,000: http://www.zoomed.com/db/products/En...tzOjI6IjIwIjt9
"The Ocean Sun is a 10,000k high intensity lamp which creates a beautiful "deep ocean" effect in your marine or freshwater aquarium. This emission spectrum, strong in the blue regions, supports the photo biological processes of marine algae and freshwater plants. Ocean Sun promotes the growth of zooxanthellae algae, essential for the growth and well being of all photosynthetic corals and invertebrates. Ideal for all marine aquariums, and freshwater aquariums where a deep water effect is desired. ..."
Did you notice that ZooMed has T5HO bulbs now?