The Aqueon 06232 Siphon Vacuum Aquairum Gravel Cleaner comes with:

Aquarium gravel doesn’t cloud the water. It keeps the water clean allowing fish to breathe easily
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It’s very popular, particularly in Europe, to create a “planted” aquarium — an aquatic garden with minimal fish. If your focus is on the plants, many aquascapers prefer brightly-colored gravel as the best complement to the natural green foliage. In the long run, however, planted aquariums usually include a “ground cover” plant, such as baby tears or grasses, which cover the visible part of the substrate in plants. In this case, your top priority would be to create a layer of substrate that will help these plants grow.
The decision whether to use sand or gravel for your aquarium can be difficult.
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Imagitarium Nutmeg Aquatic Substrate adds spice to otherwise ordinary brown fish tank gravel. Shades of maple sugar, turmeric and caramel are peppered with deep blacks to produce movement and depth. Use this aquarium gravel as a solid foundation for your aquatic plants and pets and to improve the health of your tank. Next, separate out about a pound of gravel and place it in your aquarium strainer.
Photo provided by FlickrOnce the new aquarium gravel is cleaned, its time to soak the gravel in decholorinated water.
Photo provided by FlickrWhat’s your choice to be dubbed as the Best Aquarium Gravel Cleaner?
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After selecting an aquarium of the appropriate size for the fish you will be placing in it, the next decision should be what type of freshwater aquarium gravel to place in the bottom of your tank.The for tanks up to 55 gallons is a two-inch layer. For tanks larger than 55 gallons, two to three inches should be sufficient. Shallow layers of freshwater aquarium gravel can be unattractive, and deeper layers can be much more difficult to clean.Gravel is the most popular type of aquarium substrate, with one of the biggest reasons for its popularity being that is comes in a wide variety of colors and particle sizes, with the choice of colors being why it is preferred by young children who are taking up an aquarium as a hobby.Oh no! You need to clean or buy some gravel and need to wash it! The substrate of a fish tank is a term used for the covering on the bottom of the tank. It is primarily used to enhance the beauty of an aquarium, but can also change the pH balance or chemistry of the water by introducing chemicals, minerals or particles into the water. It can also benefit or harm fish and other aquatic dwellers in the tank, so the substrate must be chosen carefully. Gravel is the most common type of substrate. It creates a natural environment for fish and other tank mates. It comes in several varieties and is easy to use. However, you must learn how to prepare fish tank gravel prior to placing it in your tank to protect your fish and other forms of aquatic life.Many fish appear to be more colorful with a darker background, so if you have flashy or boldly marked fish, you may want to choose a dark color as your freshwater aquarium gravel.Another important thing to consider is the that you plan on having in your freshwater aquarium. If you plan on having live plants in your aquarium, it’s best to avoid larger gravels and opt for finer gravels instead.