This video review compares two popular LED lights for nano reef tanks: the Spectra Aqua Knight V2 and the Fluval Sea Nano. We'll explore the strengths and weaknesses of each, ultimately determining if one reigns supreme, or if a combined approach yields the best results for thriving coral growth. The review starts with a showcase of a beautiful green star polyp coral, a low-maintenance species perfect for nano reef beginners, before diving into the crucial role of lighting in maintaining a healthy reef environment.The comparison focuses on light intensity, heat generation, light distribution, and control options. We'll examine how each light affects coral growth, algae development, and the overall tank ecosystem. We also touch upon the importance of considering the behavior of tank inhabitants, using a mantis shrimp incident as a cautionary tale about coral placement. Finally, we'll offer a conclusive recommendation based on tank size and user preferences, revealing whether one light is better than the other, or if the synergistic combination of both lights proves optimal for a thriving nano reef.
Read more: Top 5 Green Aquarium Corals
Green Star Polyp Care
The video initially focuses on the popular green star polyp coral, highlighting its beauty and ease of care. This soft coral is a key element in the showcased nano reef tank. A playlist dedicated to green star polyp care is mentioned for viewers facing difficulties.
The discussion then shifts to the importance of proper lighting for coral health and growth in nano reef aquariums. This sets the stage for the comparison of the two LED lights featured in the video.
Spectra Aqua Knight V2: Metal Halide Performance
The Spectra Aqua Knight V2 is described as a metal halide light, comparable to HID bulbs in the automotive industry. These high-intensity bulbs utilize internal reflectors to project a bright, intense light. The light’s distribution can, however, lead to stray rays affecting nearby tanks, promoting algae growth.
Adapter kits are mentioned as a solution to focus the light's intensity directly onto the coral tank. The presenter shares their experience of algae streaks developing in another tank due to the Aqua Knight V2's stray rays.
Fluval Sea Nano: LED Efficiency and Heat
The Fluval Sea Nano is an LED light, offering a range of intensity options depending on the desired lumens. Unlike metal halide lights, LEDs generate less heat, providing a gentler environment for corals. Heat generation depends on the proximity of the light to the corals.
Both lights are controllable via their respective interfaces (app for Fluval, timer for Spectra). Links to unboxing and programming videos for both lights are provided.
Comparative Analysis and Tank Observation
The presenter notes that the Spectra Aqua Knight V2, when used alone, concentrated light in the tank's center, leaving some areas less illuminated. The use of both lights resulted in more even light distribution and coral growth.
The presenter discusses algae growth, explaining that some algae presence is acceptable and can be managed with cleanup crews. They highlight the positive growth of several corals, attributing success to the Spectra light initially, but also noting the recent addition of the Fluval.
Mantis Shrimp Impact and Coral Growth
The presenter discusses the impact of a mantis shrimp on a montipora coral, noting that the shrimp damaged the coral while seeking shelter. This situation underscores the importance of considering inhabitants' behavior when positioning corals within the tank.
The video showcases the healthy growth of other corals, including the Kenyan Tree Coral and a newly acquired hydenophora, which glows under moonlight.
Conclusion: Choosing the Right Light
Both the Spectra Aqua Knight V2 and the Fluval Sea Nano are deemed excellent lights, each with its strengths. The Spectra provides a broader spectrum and more intensity, while the Fluval offers app-based control for greater versatility in lighting adjustments. Both lights are used simultaneously to achieve optimal results in the tank.
The choice between the two ultimately depends on individual preferences and tank size. The Spectra is suitable for larger tanks, whereas the Fluval is better suited to smaller nano tanks. The presenter ultimately keeps both lights due to their combined benefits.
