bigdave
bigdave
Terry B said:Did you ever try reading the articles that I linked to? It will seperate fact from fiction.
Terry B
Great reading Terry Thanks for the Links. Dave
Terry B said:Did you ever try reading the articles that I linked to? It will seperate fact from fiction.
Terry B
Ultra violet sterilizers can help prevent the spread of infection between aquariums in a multi-tank system. When an ultra violet sterilizer is placed in the water flow between tanks in a multi-tank system it can eradicate theronts before they can spread into the next aquarium. However, UV lights are less effective at eliminating infection within a single aquarium. Free-swimming theronts can exit tomonts and infect fish before passing through an ultra violet sterilizer. This means that the parasite will continue its cycle life cycle within that aquarium (Gratzek, et al., 1983). Gratzek's study was performed with freshwater "ick" Ichthyophthirius multifiliis, but it is also believed to apply to Cryptocaryon irritans.
Freshwater dips are largely ineffective in the treatment of Cryptocaryon irritans (Burgess, 1992). The host epidermis and thick layer of mucus form a barrier impervious to osmotic shock (Colorni, 1985). "Most of the trophonts whose hosts had undergone hyposalinity treatment, including freshwater, for at least 18 h, were still alive and occupied the same position in the host by the end of the experiment, following re-adaptation to sea water. They later dropped from the fish, encysted, and the tomonts produced tomites" (Colorni, 1985).
Note that the above quote says "most" and not all trophonts. Trophonts embed themselves completely into the epithelium under a layer of skin. This protects these trophonts from dips. As the trophonts grow in size they gradually displace the overlying epithelium. This is when they become visible as white spots or nodules. Exposed trophonts may be susceptible to freshwater dips, but trophonts that survive continue in their life cycle making this method only partially effective at best.
Freshwater dips can cause osmotic shock. Typically the fish are exposed to the air during the process of capture, handling and transfer, all of which are stressful to the fish. Freshwater dips cannot be depended on as the sole method of treatment for Cryptocaryon irritans and can be counterproductive because they are highly stressful to the fish. They should only be used in combination with other treatments that will successfully interrupt the parasite's life cycle.
Terry B said:Hi Dave,
I am happy that you enjoyed the articles. I should give you a "heads up" and tell you that several years ago using Coral Vital for ich was popular. It faded out because it doesn't work for that. If you seem to have had success with it then I would suggest that there were other factors involved. I have talked to at least 100 people that tried it for ich over the years. That is my opinion.
Cheers,
Terry B
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