Tips to Control Algae of Saltwater Aquarium


Are you annoyed of excess amount of cyanobacteria, red slime, cyanobacteria, green hair, algae and brown diatom in your marine aquarium? Stop panicking and relax!

At first, understand the reasons behind algae formation in your reef world then try to solve the problem because too much of algae can contaminate the water of the tank.

Common Causes of Algae Formation

There are a number of factors which led to red slime and algae formation in your tank. The fishkeepers should know the causes to solve the problems of cleaning algae from their aquarium.

  • Too much intense light may encourage the growth of algae, so maintain the light of the tank.
  • Much amount of phosphate, silicate, and nitrate in the water can be the reason of formation of algae.
  • Less water flow or water circulation in the aquarium are the reason for algae formation.
  • Poor quality sea salt mix in an aquarium is the reason for algae formation.
  • Finally, less hygiene management and improper water source are the reasons of too many algae in the tank.

Solutions to Getting Rid of Algae

Long we have discussed the reasons for algae formation, now we need to think about the solution from the root. Try to follow some ways to stop the algal growth in the fish tank:

  • Use siphoning by installing a good filtration process in your saltwater tank to clean out the ammonia from the tank.
  • Reduce phosphate and nitrate from the fish tank by checking the water.
  • Keeping a good substrate like sand and gravel may help in reducing the silicate which the major reason of algae formation.
  • Purchase a good quality sea salt mix and carbon to put in the water of the aquarium.
  • Add a protein skimmer in the tank which will help remove excess nutrients of Dissolved Organic Compounds (DOCs) which is one of the sources of algae in a reef aquarium.
  • Try to adjust the lighting of the fish tank because too much light in the tank can cause green and brown algae in the tank.
  • Add artificial current in the reef aquarium with the help of an automated high filtration machine to flush out the dirt from the driftwood and objects in the tank.
  • Replace 10-15% of tank water once in a week and replace 20% of tank water once in a month to reduce algal growth.
  • Clean the walls and corners of the fish tank twice a week to clean out the algae from the tank.
  • Add algae-eating species like Bristlenose Pleco, Shrimp, Tangs, Surgeonfish, Starfish and Snails that can eat up the dirt and every type of algae in the tank.


Following all these expert tips will definitely help you reduce the dirty algae from each object of the tank that makes the tank dirty and unhygienic. Don't get upset about the problem, try to find out the solutions by maintaining the hygiene of the tank. A clean aquatic home can give total comfort and disease-free environment to your pet fish.      

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