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The Science of Aquariums

April 14th 2023

By Charlotte Johnson.

Aquariums are captivating ecosystems that bring the fascinating world of aquatic life into our homes and public spaces. To maintain a thriving aquarium, it’s crucial to use high-quality water and pay attention to its chemistry. And that’s what we’ll be talking about in this post, including how Spotless Water can help.

The Importance of Total Dissolved Solids (TDS) in Aquariums

Total Dissolved Solids (TDS) refers to the combined content of all inorganic and organic substances present in water in a molecular, ionized, or micro-granular suspended form. These substances include minerals, salts, metals, and other ions.

TDS levels play a significant role in water quality in freshwater aquariums, as high TDS levels can cause stress, inhibit fish growth, and even lead to illness or death. As a result, maintaining appropriate TDS levels is crucial for ensuring the wellbeing of aquarium inhabitants.

The Benefits of Zero TDS Water for Aquariums

Using water with zero TDS, such as that offered by Spotless Water, provides aquarium owners with greater control over their water chemistry, ensuring optimal conditions for fish. The absence of dissolved solids in the water reduces the risk of introducing unwanted contaminants, which could negatively impact fish health and the overall balance of the aquarium ecosystem.

Moreover, in sensitive or specialised aquarium setups, such as those housing delicate fish species or breeding tanks, using ultra-pure water with zero TDS is essential for maintaining a stable environment and promoting fish health.

The Risks of Using Ordinary Tap Water

Ordinary tap water often contains various impurities, minerals, and chemicals that can adversely affect aquarium water quality and the health of its inhabitants. These substances may include chlorine, chloramines, heavy metals, and other contaminants.

Sudden changes in water chemistry resulting from the use of unfiltered tap water can lead to stress and illness among fish, and may even cause fatalities.

Furthermore, the inconsistent quality of tap water can make it challenging to maintain a stable environment within the aquarium, potentially leading to long-term problems for fish health and wellbeing.

The Benefits of Ultra-Pure Water in Improving Aquarium Water Chemistry

Not yet convinced that ultra-pure water is the best option for your aquarium? Here are some benefits that might make you change your mind.

Consistency and Stability in Water Chemistry

One of the primary benefits of using ultra-pure water in an aquarium is the consistency and stability it brings to the water chemistry. Since ultra-pure water has zero TDS, it is free of impurities and contaminants. This allows fishkeepers to start with a clean foundation, making it easier to adjust and maintain the desired water parameters without the influence of unknown substances that might be present in ordinary tap water.

Reduced Stress on Fish and Aquatic Plants

Fish and aquatic plants can be sensitive to fluctuations in water chemistry, which can lead to stress, disease, and even death. By using ultra-pure water, aquarium hobbyists can minimise these fluctuations and provide a more stable environment for their aquatic inhabitants.

Enhanced Nutrient Uptake an Algae Control

Ultra-pure water is particularly beneficial in planted aquariums, as it promotes efficient nutrient absorption, healthier plant growth, and vibrant colours. It also aids in by limiting access to essential nutrients like nitrate and phosphate. Hence, it can be effective in eradicating black algae. The use of ultra-pure water allows for precise control over water parameters, creating an environment where algae struggle to thrive. This helps to maintain a visually appealing and healthy aquarium ecosystem for both plants and fish.

Improved Filtration Efficiency

The use of ultra-pure water in an aquarium can also lead to improved filtration efficiency. Since there are fewer impurities and contaminants present in the water, the aquarium filter can operate more effectively, maintaining optimal water quality and clarity. This not only benefits the aquarium inhabitants but also helps to reduce the overall maintenance required by the fishkeeper.

How Spotless Water Can Help Improve Aquarium Water Quality

In this section, we will explore how Spotless Water can assist aquarium hobbyists in maintaining pristine water quality and promoting the health of their fish by providing ultra-pure, deionised water with zero TDS.

Enhanced Control over Water Chemistry

Utilising Spotless Water in aquariums enables fishkeepers to have better control over their water chemistry. With zero TDS, Spotless Water provides a clean slate, allowing hobbyists to adjust the essential parameters such as water hardness, pH, and mineral content to suit the specific requirements of their fish species. This level of control is crucial for creating a stable and healthy environment in the aquarium.

Reduction of Contaminants and Impurities

Spotless Water’s ultra-pure, deionised water significantly reduces the risk of introducing contaminants and impurities commonly found in tap water. By minimising the presence of unwanted substances like chlorine, chloramines, and heavy metals, fishkeepers can avoid potential health issues in their aquatic pets and maintain a more balanced and stable ecosystem within the aquarium.

Improved Health and Wellbeing of Aquarium Inhabitants

By using Spotless Water, aquarium hobbyists can provide their fish with a cleaner and more stable environment, which is essential for their health and wellbeing. Fish are less likely to suffer from stress, illness, or growth inhibition when living in water with controlled chemistry and minimal contaminants.

Ideal for Sensitive and Specialised Aquarium Setups

For sensitive and specialised environments, such as those for delicate fish species, breeding tanks, or planted aquariums, the use of ultra-pure water with zero TDS becomes even more critical. Spotless Water ensures that these delicate ecosystems receive the purest water possible, allowing fishkeepers to maintain stable conditions that promote the health and success of their aquarium inhabitants.

Easy Access to High-Quality Water

Spotless Water operates through a network of self-service filling stations, where customers can purchase and fill up their containers with ultra-pure water. These filling stations are usually available 24/7 and can be accessed by registered customers. Fishkeepers can locate these stations using the Spotless Water app or website, which provides information on the locations and pricing of the filling stations. This makes obtaining high-quality water for aquarium use both convenient and accessible.


In summary, ultra pure water is an excellent option for a healthy aquarium. It can provide high-quality water to improve the aquatic environment. Spotless Water can offer the perfect solution by providing ultra pure water with 0 TDS. It has not harmful chemicals and impurities you will traditionally find in tap water.

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