Therapies For Filamentous Algae


Filamentous algae are unicellular organisms that link and also develop long, slimy chains or filaments. Its filaments increase persistently and stick on the fish pond as well as rock surfaces, providing a dreadful look as well as rank scent on your much-loved water functions. A lot worse, the filaments can produce thick and big floor coverings that appear the same as woollen. Filamentous algae are silent as well as quick killers that strike all-time low of the water and also connect to rocks, aquatic plants, as well as pond’s surface area. They float externally of the pond as well as trigger unattractive mats or referred to as “pond residues” that existing various issues on the fish ponds.

Filamentous algae are hazard to the life of water animals and also the fish pond itself. The extreme populace of filamentous algae of can diminish the oxygen exchange and trigger massive fish kills. Given appropriate preventative therapy, the rise of filamentous algae populace could still be regulated, or gotten rid of. There are different control techniques used particularly: mechanical/physical, organic and also chemical.


The piles of filaments can be raked from the bottom of the pond. An additional means is the fertilization of “phytoplanktons” to hinder the formation of filamentous algae.

Making use of non-toxic dyes or colorants on the fish pond could enclose the sunlight from passing through the water. Nonetheless, these colorants could also affect the health food chain of the fish pond.


There are several types of fish that aid prevent the growth of filamentous algae. One of this is the yard carp. Lawn carp equipping is practiced in numerous fisheries in USA, due to the fact that yard carp is regarded to take in filamentous algae for food. However, yard carp eats initially all the greenery submerged in the water before it finally eat the filamentous algae. Or else, turf carp stocking can control about 10 to 20 per surface area here

Tilapia is additionally utilized for control, however this specie can not make it through low temperature levels below 55 ° F. It is not advisable to equip tilapia before April or May because it will certainly pass away in November or December. The recommended equipping prices need to be 15 to 20 pounds of male and female Mozambique tilapias (Oreochromis mossambicus) per surface area. Nonetheless, tilapias are not reliable for greenery control particularly if the fish pond has serious algae trouble.

On the other hand, a number of states need permit from a qualified wild animals department prior to you can equip tilapia as well as yard carp.


The chemical components known for dealing with filamentous algae are copper, sodium carbonate peroxyhydrate, as well as diquat.

Copper compound is used as herbicide for the elimination of filamentous algae. All copper compounds can be harmful to the fish pond, so it is very important to take appropriate preventative measures before utilizing this treatment.

You must evaluate the pond water’s alkalinity initially and also readjust the quantity of copper therapies based upon the water’s alkalinity degree.

The sodium carbonate peroxyhydrate based herbicide is used for the control of green algae. Nevertheless, this chemical is ineffective in dealing with macroalgae like Chara or Nitella and also various other higher plants.

Diquat is a get in touch with herbicide that controls numerous species of filamentous algae. It is applied by putting the chemical straight right into the pond or by watering down the concentrate with water below the water surface.


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