Legend Acheron AlGreenEX 


Legend Acheron AlgreenEX™ helps you combat algae growth quickly and easily in tropical tanks. This includes beard algae, brush algae, and thread algae.

Legend Acheron AlgreenEX™ will stop algae growth and it will start to combat the present algae in your tank. It will eliminate new colonisations of algae to prevent them from getting it back into the tank.

Legend Acheron AlgreenEX™ is copper and biocides free algaecide dose weekly to control and prevent algae growth

Biological aquarium treatment that uses billions of beneficial bacteria to clean water

Legend Acheron AlgreenEX™ Eliminates green water in aquariums removes sludge and naturally removes dangerous toxins from water

also improves water clarity and quality

We generally recommend a water change of 25% to 50% per week in aquariums. After the treatment against algae, use Legend Ancestral Phi ™ to reduce stress, to encourage rapid growth and the plant’s recovery


Sizes: 100 mL, 250 mL, 500 mL, 1 L, 5 L


Active ingredient: Salicylic acid (69-72-7) 0.26 g/L


Shake well before use and remove active carbon.

Add 10 ml per 100 liters once a week, for at least 4 weeks. This is to ensure all algae traces in the tank are gone.

When algae return quickly after treatment, simply repeat the dosing instruction but with 50% of the dosage once a week.


6 Tips for Avoiding Aquarium Algae Overgrowth

  1. Reduce Light Intensity and Duration

Placing your planted tank in a position where it will be in direct sunlight, even for a small part of the day, will promote algae growth.


Artificial light needs to be monitored to ensure that it is only as strong as is necessary and not on for any longer than eight hours a day. Consider using a timer on the plug socket to make sure you are keeping lighting levels perfect.


  1. Reduce Feed Amount

It is very easy to overfeed your fish and this increases water phosphate levels. Ensure you are removing any uneaten food from the aquarium after five minutes. If you are removing food after every feed, you are overfeeding.


  1. Increase Water Changes

If there is one thing that is important to do properly, it is regular water changes. The recommended amount to change is 25% to 50% of the aquarium water weekly. This will make sure that nutrient levels in the water are kept to an optimum level.


  1. Increase Water Testing

It is really important that you understand the water that you are putting into your planted tank. Test the water at the source for phosphates and nitrates, and then respond accordingly.


  1. Increase Overall Aquarium Cleaning

The minute you see algae (or even a potential algae site!) get cleaning started. Any movable items within the aquarium, remove them and scrub them hard. Glass can be scraped and gravel can be vacuumed.


     6. Increase Numbers of Algae Eating Fish

The fun way to keep your algae under control! Several types of tropical fish will help you by eating and grinding some of the algae in the tank. Plecostomus, Otocinclus and the Siamese Flying Fox are great examples.


Legend Acheron AlgreenEX MSDS 20230622.pdf


Shrimp friendly
Storage: at room temperature. Protect from frost and heat. Keep out of reach of children and pets.
Use: Only for fertilizing ornamental plants in an aquarium.
See package insert for detailed dosage recommendations. Note: official guidance recommendations take precedence.
Shake well before using.

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Removes green algae

Effective means

Simple application

Optimal treatment for all types of algae.

Due to its liquid formula, the highly active ingredient is released

immediately and is optimally distributed in the aquarium water