Wednesday, September 18, 2019

A quick guide to get rid of green hair algae in saltwater aquarium


Green hair algae are almost synonymous to a mess for the saltwater aquarium owners. The greeny base in the saltwater aquarium is sometimes life-threatening to your fish, and once it starts growing, it soon captures most of your tank, and thereby it makes the aquarium uncomfortable and suffocating for the fishes.

Before knowing the methods of curing your aquarium of green hair algae, you need to know the suitable growth condition of green hair algae. Three factors promote the growth of green hair algae; these are light, nitrate, phosphate. Nitrate forms by any kinds of nitrogen waste, cheap sea salt, or polluted water. Phosphate is the end products of remaining particles of fish food, and it also comes from pH buffers and also from dead algae or fish. To control green hair algae, you need to have control over these sources which make a suitable condition for growth for these algae.


Once you see a green base in your saltwater aquarium, you need to test nitrate and phosphate level in your aquarium. You will find different tools and kits to measure this. After you identify this, you can follow these methods:

Steps to reduce nitrate

Nitrate reduction is an important step when you are planning to get rid of green hair algae for a long term

Change Water

To reduce nitrate, the best option is to change the water. It will instantly clean the tank and speed up the reduction process. By doing this, you will be able to reduce the nitrate level only. Now, what about the source of nitrate?

Aquarium Cleaning

To destroy the sources of nitrates, you need to clean the aquarium on time. You can manually remove the green hair algae. Alternatively, you can go through the siphoning technique as well to get rid of green hair algae. Also, you can siphon the food particles and the fish wastes too.

Use of Nitrate removers

Presently, there are several options to get rid of nitrate; nitrate sponge is one of these options. In addition to this, you can use di-nitrate solutions as well. Along with these, Poly Filter Pads and Acurel Nitrate Reducing Pads are giving intense satisfaction to the owners right now. You can use any of these according to your budget, and you can be sure about the results.  

Mangrove plants

If you want long term results, you can add some mangrove plants in your saltwater tank. It is a natural method of nitrate control in any aquarium.
Keep in mind that proper maintenance is the secret of nitrate reduction in a saltwater tank.

Steps to reduce phosphate

Nitrate reduction will not be enough to get rid of green hair algae; you need to reduce phosphate as well.

Changing Water

Phosphate can come in the aquarium if you continue to use tap water in your aquarium. It comes from any kinds of dirt. You can temporarily get rid of the problem by changing the water, but phosphate level will continue to grow again until you change the source of water. It means if you keep using tap water, you can probably see a higher level of phosphate.


Use of pure water

Here, you are advised to use the RO/DI water. It will control the level of phosphate in your aquarium.

Phosphate removers

In the market, there are various products available to reduce the phosphate level like Phos-guard, Phos-ban. You can select any of these according to your budget.

Mangrove plants

The mangrove plants which are commonly used as nitrate remover can also be used here as well. These mangrove plants will be placed in the forms of seed which will protect the base of your aquarium.

Additionally, you can try the vodka method that has recently come in the limelight and appeared to be a successful method to reduce nitrate and phosphate level and produce a green hair algae free aquarium. To try this method you need to be very particular about the measurement because a slight mismatch can lead to a negative result.