How to Keep Algae from Thriving in Your Water Tank

Water is required for all life on Earth to exist. Despite this, around 2.1 billion people worldwide do not have access to safe, clean, and dependable drinking water in their homes. According to a report published by UNICEF and the World Health Organization, almost 4.5 billion people do not have access to clean water and sanitation. Water storage that is clean and safe is vital. You are not alone in wanting to increase the lifespan of your tanks.

Proper Water Storage

Clean fresh water from companies like Bright Water Services and proper water tank storage are vital for the environment. One issue that could limit your ability to extend the life of your tanks is algae growth. If any of these contaminants are found in your drinking water, it is no longer safe to drink for humans, animals, or plants. Pathogenic bacteria found in algae can be fatal to many organisms.

What can you do to keep your water tank algae-free? 

Before calling your water distribution company, you can do things to keep hazardous algae and bacteria from growing in your water tanks. Here are some pointers for extending tank life and avoiding algae growth.

Opaque Tanks

Always buy entirely transparent tanks. Algae must be exposed to sunlight to gain energy and grow. The organism’s dependency on photosynthesis is the reason behind this. In the absence of sunlight, algae cannot thrive. Furthermore, algae are less likely to colonize if your tanks do not receive direct sunlight. Algae are less likely to collect in your tank as a result, and if they do, they will die.


You can employ bleach to get rid of algae. A quarter teaspoon per gallon of water in your tank should be recommended. Bleach is great for getting rid of algae (and other creatures that may be lurking in your tanks) and preventing it from growing back. According to a scientific study, using bleach made from a solution containing 5.25 percent hypochlorite is effective. Bleach and chlorine should never be mixed. This mixture is also known as chlorine gas, which is something no one wants.


Use chlorine as needed. Chlorine is a powerful anti-algae agent. To 1,000 parts water, you should add four parts chlorine. When not too much chlorine is added, the water is still drinkable and does not taste bad.


It is vital to keep the bleach-to-water and chlorine-to-water ratios under strict control. This kills or slows the growth of algae while also keeping the water clean. These methods will simply keep algae at bay in your tank. It is pointless to gather rainwater if algae grows on it. Even using a solid water treatment tank lining will not assist if algae have colonized your tanks.

To summarize

You should sanitize your tanks every six months to a year to prevent contaminants and algae from forming in the first place. Because algae are unlikely to form in freshwater tanks, keeping them clean should be rather simple, provided you stick to a regular sanitation plan. If you follow the directions above in the letter, you should have an algae-free freshwater tank.