How to Get Crystal Clear Aquarium Water: The Ultimate Pond Planet Guide

All fish tank owners dream of having that vivid, clear aquarium with water clean enough to see right through to the other side. With the right maintenance and attention, this image doesn’t have to be a pipe dream but, instead, a reality. 

Follow our basic steps to avoid the threatening murky clouds of algae and discolouration and instead let your aquarium water be the crystal clear paradise you strive to have.

The key to clear aquarium water includes just a few simple steps that, when considered, are easily done to create an ideal environment for your fish to live.

Table of Contents 

  1. Regular Maintenance
  2. Correct Filtration 
  3. Eradicate Algae From Your Aquarium
  4. Reduce Nitrates and Phosphates
  5. Use a Water Treatment or Clarifier
  6. Reduce Waste in your Tank
  7. Maintaining Crystal Clear Water

Regular Maintenance

When looking after your aquarium, routine maintenance is key in keeping the water crystal clear. 

To achieve healthy, happy fish, as well as a clean, thriving tank, regular maintenance is vital and will make your life much easier in the long run. By regularly removing dirt and waste, you can ensure it will prevent it from building up and causing problems in your tank. 

What should be included in routine maintenance in aquarium tanks?

Routine maintenance of your tank should include:

  • Cleaning your tank’s glass
  • Maintaining the gravel in your aquarium
  • Regular water changes
  • Cleaning your filters

In our aquarium cleaning range, we have all types of tank cleaning equipment that will assist you in making regular tank maintenance an easy task rather than a chore. 

By taking some time to maintain a regular routine, you’ll be able to keep your water looking clean and clear. 

To help you, we’ve put together a more comprehensive piece of advice on Routine Aquarium Maintenance to help you create the perfect cleaning routine. Alternatively, you can also find out how to clean aquarium sand and gravel and discover tips for cleaning and maintaining your tank filter

The Correct Filtration

On top of your regular maintenance, ensuring you’ve got the right filtration system for your aquarium is key in ensuring that your tank’s water is as clear as possible. 

Implementing three levels of filtration: mechanical, biological and chemical, will help rid your tank of unwanted bacteria and chemicals and provide your tank with quality, balanced water. 

If you’re overwhelmed with the choice of available filtering systems and unsure whether you want an internal or external filter, fear no more. We’ve broken down your options in our What Are The Best Aquarium Filters blog to help you make the best filter decisions based on both your tank and your budget.

You can shop our full range of aquarium filters online now. 

Blue fish in a fish tank

Eradicate Algae From Your Aquarium

Whether you’ve been hit by brown or green algae, both are a plague to your tank and a roadblock to your dreams of crystal clear water. 

Algae can be caused by chemical imbalances, incorrect aquarium lighting, and not regularly cleaning your aquarium. By incorporating regular algae cleaning, whether that be magnets, scrapers or scrubbers, into your routine maintenance, you’ll be able to keep algae at bay and ensure you can achieve crystal clear water without the concerns that algae brings.

Find out more about algae in our guide, ‘Why have I got brown algae in my aquarium?’ 

Reduce Nitrates and Phosphates

If you’re continuing to experience some cloudy water issues, then this could be due to nitrates or phosphates messing with the chemical wellbeing of your tank’s water. 

When waste isn’t broken down correctly, this releases phosphate chemicals into your tank’s water. Nitrates are created when your filter breaks down the ammonia created by fish waste. These two chemicals can not only disturb the clean aesthetics of your water, but can also create a harmful environment for your fish. 

If you’re worried chemical imbalance could be causing issues with your water, then regular use of water test kits are necessary to stay on top of it.

Luckily, we’ve also written an in-depth guide on keeping these levels at bay and what to do to avoid them. Check out our guide on How To Keep Your Nitrate and Phosphate Levels Down.

Use a Water Treatment or Clarifier

Water treatments are a great supplementary treatment for your water, alongside the previous steps mentioned. 

Using water treatments is a great way to achieve optimum results with the clarity of your water, as it helps remove smaller bacteria particles by making them into bigger particles that can be removed with the help of your aquarium’s filter system. 

Fast-acting and able to reach even the finest of substances, such as sand, water treatments cause no harm to your tank’s inhabitants whilst helping to make their home crystal clear.

Orange fish in a spherical fish tank

Reduce Waste in Your Tank

One of the most detrimental factors to your aquarium water’s wellbeing is the effects of excess waste, whether from overfeeding your fish or from their excrement. 

By making sure you undertake regular maintenance, as well as ensuring you don’t overfeed your fish, then you’ll create great foundations for crystal clear water right in your fish tank.

The key to getting crystal clear water in your fish tank is to zone in on what could be causing it and fix the problem from the root. 

Maintaining Crystal Clear Water

By following each of these steps, you should be able to eliminate the key problems that can cause any cloudiness in your tank, and they will help create a thriving environment for your fish to inhabit – making that crystal clear paradise a true reality. 

If any discolouration or cloudiness returns, don’t rush too quickly to fix it, as this can often fix itself naturally as part of your tank’s cycle. 

Explore our full aquarium range and get stocked up on everything you need to sustain your tank’s clean water!


The Pond Planet Guide To Aquarium Ph Levels

How To Water Test Your Freshwater Aquarium

The Beginners Guide To Aquarium Filters

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