Product Review: Apogee Instruments' MQ-500 Quantum Meter with Notes on Why Measuring Light Intensity is Important
Dana reviews Apogee's premium MQ-500 Quantum (PAR) Meter and explains why reefkeepers should measure the light levels in their aquariums. Apogee has also introduced a new quantum meter specifically designed for underwater aquarium use.
Walking through big-box home improvement stores, we see an increasing selection of LED bulbs. Are any of these bulbs suitable for aquaria? Dana investigates seven LED lamps.
From flow to power consumption, noise levels to heat transfer, Dana Riddle puts the Tunze Turbelle Nanostream propeller pumps through their paces in his extensive review.
EcoTech Marine's VorTech pumps recently underwent its first major product evolution. Dana Riddle thoroughly evaluates the new MP40 QuietDrive propeller pumps for their functionality and performance.
Stony coral nubbins (tentatively identified as Porites lobata; see Figure 1) were exposed to light of the same intensity (128 µmolm²sec) but different spectra for 75 days. Growth rates were determined by weighing the fragments periodically with an analytical balance.
Dana Riddle thoroughly reviews one of the most anticipated and innovative water circulation devices to enter our hobby in some time. How does the Maxspect Gyre XF150 measure up?
Dana Riddle thoroughly reviews the Barrier Reef Aquarium Nova A4 controllable LED light. For under $300 USD, how well does this four array, 51 LED, 100 watt, remote-controlled fixture perform?
The Apogee MQ-200 Quantum Meter offers many advantages to aquarium hobbyists. The meter is relatively inexpensive (as quantum meters go) and the submersible sensor is small and allows measurements to be made in tight spots. Hobbyists should take a careful look and see if this PAR meter is for them.
Equipment Review: LED Lighting Tests: Ecotech Radion Pro, Aqua Illumination Hydra, GHL Mitras 6100HV and 6200HV
LED lighting has come a long way and the new generation of LED fixtures is delivering on the promise of LED technology, and control features. As usual, the users need to consider their own applications to determine the best one for the situation. Hopefully this data will be helpful in making your decisions.
Continuing in the same vein as my previous LED lighting tests, this article presents data on light intensity and spread along with spectral plots for several new LED fixtures.
Dana provides a very in-dept look at the Tunze Nanostream pumps, their flow characteristics, and water velocities and compares them to various water velocity zones found on reefs.
"I want a reliable lighting device and Build My LED seems to have hit the right note." Dana evaluates the construction, performance, and customer service of a custom-configured LED light from the new company, Build My LED.
Aquarium Equipment: PAR Meters and LEDs - How Accurate are the Measurements? A Comparison of Three Meters and Lux to PAR Conversion Factors for LEDs
How do PAR meters stack up to one another? Dana delves into the data comparing and contrasting three light meters and gives us his take on the results.
It's been a little over a year since Ecotech Marine introduced the Radion LED light. The Radion made big waves with aquarists and quickly ascended to mass popularity. In January 2013, Ecotech Marine began shipments of their latest and most powerful incarnation of the Radion platform: the XR30w Pro. Advanced Aquarist takes a closer look at the Pro.
As LED lighting moves further into the mainstream, there is new effort being made to provide a fuller spectrum light that can be tuned by the aquarist to satisfy both the demands of the corals as well as the visual pleasure of the aquarist.
This review will report on operational issues of a MP60 that has seen over a year of service. How well did the pump hold up? What problems, if any, encountered? These questions and others will be answered below.
Marineland Aquarium Products' Maxi-Jet pumps have been around for quite some time. Recently, their design changed as well as their country of manufacture. The manufacturer promises relatively high performance while offering them at very modest prices. Is this a case of 'you get what you pay for' or are they a true value?
Aquarium Lighting: Moonlight - A Concise Review of Its Spectrum, Intensity, Photoperiod, and Relationship to Coral and Fish Spawning
Moonlight is thought to play an important role in timing reproductive cycles of many coral and fish species. In corals, lunar cycles set the date of spawning, while the time of onset of darkness fine tunes the cycle and decide the hour and minute (then a release of hormones into the water induces mass spawning). Lunar periodicity seems to play a role in timing of reproduction among at least some fish species. It seems apparent that different taxa are affected differently by altered moon phases, if only temporarily.
It is imperative that you use reflectors with T-5 bulbs, and individual reflectors do a better job of sending light into a tank than a single reflector. Bulb temperature and even an aquarium's background has a measurable effect on lighting performance.