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I just read this super interesting article about the brief history of chemical treatments for flatworm infestations in reef tanks.
"...they make no claims about the product having any biocide capability, but in many cases aquarists who used it found that a side effect of lanthanum treatment was quick eradication of flatworms of the genera Waminoa and Convolutriloba.
Flatworms of both genera disappear completely at the dosage of 1.0 ml/100 L of aquarium water recommended by the manufacturer. On the basis of observations to date, damage to fishes or corals is unlikely, provided the treatment is carried out as prescribed. You can also repeat this treatment regularly to lower phosphate concentration.
What could be happening? Why are flatworms being killed while corals, fishes, and other animals are unharmed?
Dr. Samuel Nietzer, coral biology researcher at the University of Oldenburg and frequent CORAL contributor, says that the toxic effect of lanthanum on flatworms has been known and utilized for a while. “I have personally used Elimi-Phos Rapid to kill off the orange Convolutriloba retrogemma (red ‘planaria’ or rust flatworms), which worked great,”
Link below for full article. What does R2R think about this??
"...they make no claims about the product having any biocide capability, but in many cases aquarists who used it found that a side effect of lanthanum treatment was quick eradication of flatworms of the genera Waminoa and Convolutriloba.
Flatworms of both genera disappear completely at the dosage of 1.0 ml/100 L of aquarium water recommended by the manufacturer. On the basis of observations to date, damage to fishes or corals is unlikely, provided the treatment is carried out as prescribed. You can also repeat this treatment regularly to lower phosphate concentration.
What could be happening? Why are flatworms being killed while corals, fishes, and other animals are unharmed?
Dr. Samuel Nietzer, coral biology researcher at the University of Oldenburg and frequent CORAL contributor, says that the toxic effect of lanthanum on flatworms has been known and utilized for a while. “I have personally used Elimi-Phos Rapid to kill off the orange Convolutriloba retrogemma (red ‘planaria’ or rust flatworms), which worked great,”
Link below for full article. What does R2R think about this??
The Lanthanum Solution: Combating Flatworms in the Reef Aquarium - CORAL Magazine
Daniel Knop examines the many methods that reef aquarists employ in an effort to eliminate problematic flatworm pests in reef tanks, including one option that may well be the ultimate weapon to eliminate flatworms once and for all!
www.reef2rainforest.com