The HOG3xx is a hang-on-glass algae scrubbing filtration system that can be used to reduce your glass cleaning and water changes while creating an environment for living micro-animals to grow inside the scrubber.
The HOG3xx is the highest power 12-LED version of the original HOG3 which has 6 LEDs, and HOG3x which has 9 LEDs. Like the aforementioned models, the HOG3xx offers much larger algae-attachment space to hold more growth between cleanings when compared to the HOG.5, HOG1 and HOG1x scrubbers. It also has two power supplies like the HOG3x; one for a low-power 6-LED mode for startup when the growth surfaces are pure white (or for very new aquariums when there are not many nutrients in the water); and the second one to be added-in once growth darkens up the white surfaces.
The HOG3xx is ideal for tanks which have nutrient or algae problems, aquariums that are showing signs of old tank syndrome, or in highly-fed predator or NPS corals tanks. It is designed for the highest photosynthesis yet with 12 LED lights, and is suitable for the highest amount of nutrients (such as phosphate) in the water. The strong magnets attach to thick aquarium walls up to 1/2" (13mm) glass or acrylic, making it ideal for use in sumps of larger systems.
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