Aquarium Gravel

By · Wednesday, August 26th, 2009

Aquarium Gravel

Aquarium hobbyists are always careful with the water chemistry of their fish tank, because every little aspect that is crucial to the survival of marine life raising. Besides the commonly known ammonia, nitrites and nitrates in an aquarium, water pH levels are also an important factor that you as fans the tanks should be considered. Freshwater Aquarium pH levels dictate the alkalinity or acidity of water in your fish tank, measured by the amount of hydrogen ions (H +) present (acidity) or the amount of hydroxide ions (OH-) present (alkalinity).

Alkaline and acidic water

Water pH is levels that determine the overall acidity or alkalinity of water. If a water body is acidic, then it must have a level of less than 7.0. If a body of water is alkaline, then must have a level of more than 7.0. These numerical measures are very important because they determine whether a particular fish can tolerate a certain level or not. It is recommended that you do your own research on specific tolerance levels of fish that you plan to raise.

To determine the pH levels

You can use the various test kits that are available out there, although it helps to know some common techniques in determining pH levels water properly. If using tap water not tested for their aquarium, then you have to know first if the level is suitable for fish or not. One way is to measure the initial pH of your tap water first, then add a bit of a substrate material such as rocks, pebbles and gravel in the water and let stand for about 2 days one week. Then measure the levels again. This should identify the main water level, even after adding some substrates that can literally alter this level of what would otherwise be regarded as running water.

Keep water pH levels Consistent

Maintain the level of water at a constant rate in general is very important for the survival of fish. This is because they get stressed when these levels of regular oscillation, even if able to tolerate a certain level. For example, even a 0.3 consistent changes in pH levels can worsen the condition of the fish. But this does not necessarily mean you must maintain a precise level at all times, since it is almost impossible. Instead, try to keep the swing as low as possible. Keep your blood oscillation rate about 0.1 to 0.2 is considered the most suitable and less irritating to the fish in your aquarium.

Lowering and raising the pH levels of water

Buffering capacity is the ability of water to resist changes in pH levels. Knowing the buffering capacity of the tank water should be the first thing you to do before you start manipulating its pH level of the freshwater aquarium. It is common for pH levels of an aquarium is raised by the substrate being used, and indeed add only rocks and gravel as a substrate and may generate the desired water level, although you can also opt for some alternatives to high caliber, such as crushed coral. If you want to lower these levels, you can add materials that work the same way as the rock substrates, but in reverse, as the trunk. Regardless, the stock of levels is important for the proper use of any of these materials still must be considered.

Sandra Gaffney is a freshwater aquarium expert. For more great tips on freshwater aquarium ph, visit

Choosing a Fish Tank : Adding Gravel to Fish Tanks

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