Who uses ONLY SeaChem's Flourite - The Planted Tank Forum

In my opinion this is the best product available as a substrate in the planted aquarium
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Sand is one of the most common substrate materials for plants because it gives the aquarium a natural look. Silica sand, onyx sand, pool sand, and other commercial types of sands are available for an aquarium environment; however, these do not contain adequate nutrition since sand compacts too tightly with the plant’s roots and can obstruct oxygen and nutrient intake by plants. Fortified sand can be purchased and commercially sand is available, such as Fluorite, to be used together with common sand in the planted tank. One important detail to remember is sand can be dusty, so before using any type of sand, especially silica sand,wash it to remove any dirt.
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It is highly recommended to wash this substrate before use. Seachem supports this and states it can take another 2-12 hours for the aquarium to clear completely. The substrate also has a highly likelihood of clouding the aquarium upon maintenance due to the small particle size. But the small size makes Seachem Fluorite Black Sand a great addition for inverts and digging fish. I've been keeping live plants for many years with fluorite as a substrate. Due to a new job, maintaining the aquarium is now too time consuming.
Photo provided by FlickrFlourite® Black is a specially fracted stable porous clay gravel for the natural planted aquarium
Photo provided by FlickrAbout one pound of Fluorite per gallon will give you plenty of substrate; you'll ..
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The aquarium substrate can be inert (gravel, sand, clay, etc.) or it can be active and directly affect the pH and KH (carbonate hardness) of your water like fluorite, soil, crushed coral, peat, etc.
For example, crushed coral is known to raise the pH and KH (perfect for some types of cichlids or a saltwater tank), whilst peat moss (decomposed moss matter) is known to lower the pH.Seachem Fluorite Black Sand is another substrate developed specifically for the planted aquarium. Similar to standard fluorite it is made of a porous clay substance but with two clear differences. The substrate is a charcoal black and the particle size is much smaller. The black substrate will saturate the colors of the fish and plants in the aquarium. But the fine nature of the particles will result in debris building on top of the substrate and will be noticeably visible. This substrate will likely require more maintenance than other substrates and is something to keep in mind before purchasing. is a very popular planted tank substrate. Seachem briefs this substrate with “Flourite® is a specially fracted, stable porous clay gravel for the natural planted aquarium.”. Fluorite is unusual as unlike most substrates it is made from porous clay. The advantages of a clay based substrate include much higher iron levels than other substrates in this article. Red plants will especially benefit as they utilise iron for their bright red coloration. The downside is that the clay composition can become messy. Fine particles can cloud the tank initially and upon subsequent water changes. It is a strong recommendation to lightly rinse the substrate before use to eliminate these clay micro particles and keep them out of your aquarium.It can create some dust until it settles in the aquarium. You can use a flocculating agent such as Clarity to expedite this process. I recently set up a new tank using the sand and since it is a more fine particulate, I put a thin layer of Fluorite on top as I will be adding fish that like to dig and several days after setup without rinsing the substrate, my system is already crystal clear.