ICH exposure to Freshwater

[Triggerfish]

trying to determine how long the Tomont stage could survive freshwater at around 64 degrees.
anyone have a literature link? all i could find was this.

Tomonts of one strain of Cryptocaryon were effectively killed after 48 hours of exposure to 15 g/L or less (Colorni 1985). Temperature will also determine whether hyposalinity will control the parasite, with temperatures outside the optimal range (23"“30°C) causing greater breakdown of tomonts (Cheung et al. 1979).

 

[Triggerfish]

im going to go with thinking that 3 weeks in fresh would be effective.

 

[Deinonych]

im going to go with thinking that 3 weeks in fresh would be effective.

Possibly, but complete desiccation (fully dry for 24 hours minimum) is guaranteed to kill everything.

https://eurekamag.com/pdf.php?pdf=003828783

 

[ThRoewer]

The cysts stage should be dead after 3 hours in freshwater (source is if I remember correctly another Colorni study - got to find it on my computer later).
Though I would probably go with about a day to be on the safe side.

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[ThRoewer]

Aspects of the biology of Cryptocaryon irritans, and hyposalinity as a control measure in cultured gilt-head sea bream Sparus aurata
A Colorni, 1984

 

[Triggerfish]

awesome man.. thanks for that.

so looks like i should be 100% good at 0% salinity for 440 hours then.

good info on hypo keeping salinity below 10% seems to be 100% effective in a relatively short time period.

 

[ThRoewer]

There are two Cryptocaryon strains that were found in Taiwanese fish farms, located in estuaries, which can tolerate salinities as low as 1.005.
Hyposalinity at 1.008 (the lowest salinity that is safe for most reef fish) will not be sufficient to kill off those strains. But I don't think that they made it into the ornamental fish trade


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