Fish Tanks

Why Does My Fish Tank Turn Green So Fast?

Here are the main reasons that can turn your fish tank green. This is a common issue among the majority of aquariums.

Why Does My Fish Tank Turn Green So Fast? The fish tank usually turns green due to an excess of light and nutrients or low maintenance. Fish food is also food for algae; excess light produces a massive amount of algae, that’s why it turns the aquarium green faster.  Some methods help in overcoming this situation, including a high-quality filter and a UV sterilizer. 

Why Does My Fish Tank Turn Green So Fast?

Tanks embrace the beauty of the living area, they make the site more attractive. The main thing which is essential for an aquarium is that it should be crystal clear. The primary issue that occurs in a home aquarium is that it turns green faster.

9 Reasons that turn a fish tank green

Excess of Light

Proper lighting is essential for the fish aquarium because plants like algae are fond of light and the provided nutrients.

When they get too much light, they grow hyperactively, and your aquarium turns green rapidly. Sometimes you place your aquarium at a sunny place, or you turn on your tank light for too long. You may choose an inappropriate light for your aquarium. That may cause the rapid growth of algae. 

Imbalance supply of nutrients

When you put a tremendous amount of food in your fish tank, it becomes useless because it is unnecessary for fish, as they cannot eat the food in excess.

So the leftover food is ingested by the live plants like algae, and this food boosts the production level of the algae plant, leading to rapid growth, which turns your tank green so fast.

Poor Maintenance

Every fish demands attention, so as fish, it’s not only about giving them a proper environment, it’s about how you manage and look after them. When you are new to something, you might don’t know how to take care of your fish.

It can make your fish die due to suffocation, you should clean your fish tank within 14 days. You may also call the vet, who is an expert in handling fish aquarium. This happens when your aquarium is losing water.

Too much suffocation

Keep in mind that your fish aquarium should have a high-quality filter pump because these filter pumps play a vital role in preventing suffocation.

When the aquarium is airtight, it becomes suffocating, and algae overgrow, leading to clogging, and your fish finds difficulty breathing. So prefer to look after your aquarium’s environment again and again.

Wrong place

A place matters the most when it comes to an aquarium, so a significant mistake which you make is, you never understand which home is right for your aquarium.

So let me clear you, a place which is in use like your living room, so that you may look after your little friends all the time.

Avoid placing the fish tank in front of the window, which has direct sunlight because this sunlight causes algae to grow faster in water, and it turns your tank green in just a few days. So to avoid this, you should place your aquarium in the right place.

No water changing

Not changing the water for too long can produce some severe fungus in your aquarium, which causes infections in fish. That may lead to breathing problems and digestion issues.

Experts recommend changing tank water every 14 days. Moreover, even if it’s not green, it causes serious throat infections, which make your little friend unable to have his food. Many aquarium plants can live in brackish water.

Too many fish

An average aquarium is enough to keep 7 to 8 fish, but if the number of fish increases, it is evident that more organic waste will produce and you need to clean it quickly within a week, maybe.

A considerable amount of organic waste can make different algae types, which can be harmful to the fish.

Overcrowded Aquarium

A primary reason for turning a fish tank green too fast can also be overstocked food. Check for 15 minutes after feeding them.

If they did not finish the food, remove the food immediately. This uneaten food is a direct source of food for algae and other fungi. And this may turn the aquarium green faster.

Faulty Water Filter

Sometimes there is not a problem in an aquarium; the filter may cause serious issues as well. Some are washable, and some are non-washables. Some filters are not reliable for the aquarium as they fail to store the tank’s waste.

That may cause the aquarium foggy and green, and it will be harmful to the fish. So these filters should be of acceptable quality and prefer washable filters so that you can wash them every week. 

Is this green water dangerous to your fish?

Yes, this green water is dangerous for your fish and the environment. This green water may cause suffocation, and it may kill the fish and damage the plants. If there is an overgrowth of algae, it becomes more intense and harmful. Its cure is necessary because it may cause severe irreversible effects to your aquarium. 

Are algae harmful to a fish tank?

Honestly, algae are not bad for fish; they do photosynthesis from the light and waste nutrients of the tank and produce oxygen, which helps the plants and fish.

They have oxygen in the day time, which can be at night time. Algae develop a whole ecosystem, many fish like to eat algae, but the point is, excess of everything is terrible, and so in the case of algae. Excessive growth of algae can cause a foggy environment in an aquarium, not suitable for living organisms.

How to clear my green fish tank water?

Many cures can eradicate the greenness of the tank, and these are listed below:

  • Add Algae Eater in Aquarium: You can also add an algae eater fish in your fish tank, which prevents the abnormal growth of algae.
  • By providing proper light: Keep your aquarium away from sunlight.
  • Keeping good maintenance: Good maintenance can control the environment healthy. 
  • Testing Water, 14 days: Test water every 14 days.
  • By providing a proper dose
  • By using high-quality filters
  • · By removing uneaten food.
  • Add anti-algae drops.
  • Prefer live plants. 
  • Stop overfeeding the fish.
  • Decrease the lighting period.
  • Avoid sunlight.
  • Use UV sterilizer 
  • Use authentic cleaning agents
  • Change filters within 14 days. 

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