| Comments from independent, expert aquaculturists using LED plant lights: It's interesting to watch the bubbles stream off the plants. I set the level of CO2 to be just under what will make the plants 'pearl' or bubble with O2...Even with the greater biomass from the increase in growth further limiting the CO2 concentration the plants are pearling. I'm just amazed. Sean, Fisheries Biologist (pictured to the left) The grow rate has increased but more importantly the morphology and especially the color of the plants has changed for the better. The most noticeable difference appears in a plant called "sunset" hygrophilia polysperma. The tops of that plant have become bright reddish/pink... Kevin, Ph.D. Candidate Integrative Biology Guelph, ON, Canada The zooanthid corals really change shape under different forms of light. Short stocky bodies under high light (fast growth) and longer stalks and slower growth the less light that reaches them. With LED, growth is fast, far faster than fluorescent lighting only, and the Zooanthids remain very compact. In fact, buying longer stalked zoos quickly change to a short stalk and use the extra mass to spread quickly (grow more heads). Damian Mississauga Fish Club |
| Using our LED plant lighting, the angle of light dispersion varies depending upon surface action within the tank. If the water was fully at rest, glass smooth, the angle of light would be 30-45 degrees as we use a mix of those two angles. However, in reality, the surface of the water is greatly agitated by both the water filter and air stones typically present. In this more real life situation the angle of light dispersion is infinite, with light beams that narrow to pin points and widen to flood light widths constantly. The dancing beams of artificially focused light create a great effect in the tank, as each individual light color is focused separately from time to time. The only thing one must be aware of is a plant growing to the surface, then obstructing the light and eliminating the ripple effect for scattering light within the tank. Even this is not much of a problem, as up to 95% of the light energy is transmitted through the leaves to continue on to lower leaves. Supplementing the CO2 concentration will further increase biomass |

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