Aqua One Air Stone - Ceramic 25x15mm (2pk)

AquaOne SKU: 10157


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Aqua One Air Stone - Ceramic 25x15mm (2pk)

Ceramic stones are highly effective for biological filtration due to their porous structure, which offers a large surface area for beneficial bacteria. Their durability, chemical stability, and ease of maintenance make them an excellent choice for maintaining a healthy and balanced aquarium ecosystem. These attributes help ensure a stable environment for fish and other aquatic life, leading to better water quality and overall aquarium health.


Oxygen plays a crucial role in maintaining a healthy and well-functioning aquarium. Here are several reasons why adequate oxygenation is vital:

  1. Fish Respiration:

    • Fish, like all aerobic organisms, require oxygen to breathe. They extract dissolved oxygen from the water through their gills. Insufficient oxygen levels can lead to stress, reduced immune function, and even death in fish.
  2. Beneficial Bacteria:

    • Beneficial bacteria that break down harmful waste products (ammonia and nitrite) into less harmful nitrate require oxygen to function. These bacteria are essential for the nitrogen cycle, which keeps the water safe for fish.
  3. Prevention of Toxic Gas Accumulation:

    • Oxygen helps prevent the build-up of toxic gases such as carbon dioxide (CO2) and hydrogen sulfide (H2S), which can be harmful to aquatic life. Proper oxygenation ensures these gases are kept at safe levels.
  4. Plant Health:

    • While aquatic plants produce oxygen during photosynthesis, they also consume it during respiration, especially at night. Ensuring a steady oxygen supply helps maintain a balance, preventing oxygen depletion during the night.
  5. Fish Stress Reduction:

    • Proper oxygen levels reduce stress in fish, improving their overall health, behavior, and resistance to disease. Stress-free fish are more active and display better colors.
  6. Support for Aerobic Decomposition:

    • In well-oxygenated water, organic waste decomposes more efficiently. Aerobic decomposition (with oxygen) is faster and less odorous compared to anaerobic decomposition (without oxygen), which can produce foul-smelling byproducts.
  7. Prevention of Hypoxia:

    • Hypoxia (low oxygen levels) can lead to fish gasping at the water's surface, sluggishness, and even fatalities. Ensuring adequate oxygen levels prevents these adverse effects.
  8. Oxygen and Temperature:

    • Warmer water holds less dissolved oxygen. During summer or in heated aquariums, maintaining adequate oxygen levels becomes even more critical.

Methods to Increase Oxygen Levels in an Aquarium:

  • Air Pumps and Air Stones:

    • These devices create bubbles in the water, increasing surface agitation and promoting gas exchange (oxygen in, carbon dioxide out).

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