In Part I of this series [1], we presented the data on 400W single ended mogul reflectors, designed primarily to be retrofit into existing canopies. This article continues in a similar vein and presents the data and analysis of lighting fixtures designed for the 150W and 250W Double Ended (DE) metal halide lamps.…
Light plays a vital role in the success of keeping corals in an aquarium. Light drives photosynthesis and plays an important role in the overall health of corals. The lighting system of a reef aquarium is one of the most argued about and one of the most expensive components.…
Every aquarist at one time or another has had to deal with plumbing issues such as sizing of pumps, selecting pipe size, determining whether the pump can be upgraded without changing the returns in the overflow box, maintaining water flow while controlling velocity so that it does not blow off the coral tissue, etc.…
The popularity of double ended MH lamps is on the increase. Their compact size and the availability of attractive luminaries such as the Aquaspacelight by Aqualine Buschke, the Nova by Giesmann and others adds to the aesthetic appeal of reef lighting.…
The graduating seniors of the class of ‘99 voted to place two aquariums in the atrium of the remodeled HUB-Robeson student union as their class gift. This project garnered almost 30% more in contributions than any previous class gift.…
During the last year or so several new metal halide lamps have made it into the market, along with some new ballasts recommended for the lamps. This article is a continuation of the series [references 1-5], and the sixth in the series.…