The HOG1.3 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 HOG1.3 is the first larger version of the standard HOG.5, HOG1, and HOG1x algae scrubbers. It offers much larger algae-attachment space to hold more growth between cleanings, as well as stronger magnets to attach to thicker aquarium walls up to 5/8" (16mm) glass or acrylic. If your tank is larger than a nano, then you should consider this model or larger.
The HOG1.3 is designed to attach to your aquarium wall via magnets, and is recommended for glass or acrylic 1/4 inch (6 mm) to 5/8 inch (16 mm) thick. The HOG1.3 is not recommended for thin 1/8" (3mm) glass used in many low-cost 10 gallon aquariums, as the strong magnets may crack the glass. For aquarium walls larger than 3/4" (18mm), you can place the HOG1.3 in your sump instead.
the HOG1.3 is meant for situations which don`t have nutrient or algae problems (a new tank, for example). The large inside space of the growth compartment allows for lots of build up of algae over a long time, and the relatively low power 2 LED light grows algae at a nice comfortable pace, making this model great for aquariums that are new or already in good shape.
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