Aerosol Transmission

[xruss]

Hello guys!

I have an question regarding the aerosol transmission of cryptocaryon.

It is said that i can Spread about 3 meters if an airstone is active in the water. is this true?

And what exactly is traveling through the air? Is it the protomont stage and the theront stage, or is it only the theront stage that travels through the air?

And another question, how long does it take, for the theront stage to die?
Somewhere i have read 48h, is this true?

with best regards

 

[Rob.D]

Welcome to R2R!!!

I haven't the slightest clue to your answer and I don't think I've ever seen any write-ups about airborne ich.

 

[Humblefish]

The study that was done on aerosol transmission involved Amyloodinium (Marine Velvet disease). It proved the dinospore stage of velvet was transmissible up to 3 meters (or 9.84 feet) with dynamic systems. Well, any aquarium with flow/bubbles breaking the surface can be considered “dynamic.” The dinospore stage of velvet is similar in nature to the “free swimming” stage of other external parasites. Cryptocaryon irritans (aka Marine Ich) has a theront stage, for example. Therefore, it is logical to conclude that these are transmissible via aerosol as well. More info available here: https://www.reef2reef.com/forums/fish-disease-treatment-diagnosis/190292-aerosol-transmission.html

Technically, a theront has 48 hrs to find a fish host or die. However, it's infectivity is greatly reduced 6-8 hours after it leaves the cyst.

 

[Rob.D]

Wow!

 

[reefwiser]

I have found this to be true. I ran a Fish hospital for my club for years and had QT tanks is the four corners of my basement with completely different equipment and tools marked for each tank. I learned this the hard way.

 

[xruss]

Thanks for your replies!

so basically, i could use cryptocaryon infected water, let it stand for 24h in a bucket, then fill it in another bucket und let it stand for another 24 hours, this water should now be "ich" free?

I know that article already, i was looking for more information about this.

Alsoit would be great if there where more pictures for the specific diseases in the sticky..

 

[xruss]

I have another question, the white spots from "ich" should be visible for at least 3 days, at the same place?
What could it be, if the spots are on another place everyday?

And "ich" has to be under the skin? so what is it when the white spot looks like a pimple?
Could it be that this is just sand?

I had a fallow period in my DT for nearly 80 days, the couse was "ich".
I threated my fishes with TTM and Hypo and i watched them for a little over 2 weeks if there would be any sign of ich occuring, now they are back in the DT and i feel a little bit like i failed, but im unsure about what i have missed.. i worked everything out like its been written up in this forum..
I used tools for every tank, i even catched the fish with my bare hand and was cut by my tangs and was biten by my trigger..

 

[Humblefish]

so basically, i could use cryptocaryon infected water, let it stand for 24h in a bucket, then fill it in another bucket und let it stand for another 24 hours, this water should now be "ich" free?

Or just let it circulate in one bucket for 48 hrs. You'd be left with dead theronts in there, unable to infect fish. This only applies to water however; NOT rocks, substrate, corals, etc.

I have another question, the white spots from "ich" should be visible for at least 3 days, at the same place?What could it be, if the spots are on another place everyday?


And "ich" has to be under the skin? so what is it when the white spot looks like a pimple?
Could it be that this is just sand?

Could be sand. In my 150 gal, I have a Maroon clownfish always kicking up sand with her tail and it blows everywhere. You would think I had ich in that tank. It especially sticks to fish with thick mucous coats. Pimple looking growth(s) on the surface of the skin can be Lymphocystis or something else entirely different from ich.

I had a fallow period in my DT for nearly 80 days, the couse was "ich".
I threated my fishes with TTM and Hypo and i watched them for a little over 2 weeks if there would be any sign of ich occuring, now they are back in the DT and i feel a little bit like i failed, but im unsure about what i have missed.. i worked everything out like its been written up in this forum..
I used tools for every tank, i even catched the fish with my bare hand and was cut by my tangs and was biten by my trigger..

Can you describe your QT/treatment process in more detail? When you say you treated them "with TTM and Hypo" does that mean you transferred them while under hypo conditions? Or you ran hypo on them before or after TTM?

When handling a fish, it's better to use latex, nitrile or rubber gloves than your bare hands. I personally use a square plastic colander to transport the fish when doing TTM:

 

[xruss]

so basically, i could use cryptocaryon infected water, let it stand for 24h in a bucket, then fill it in another bucket und let it stand for another 24 hours, this water should now be "ich" free?

Or just let it circulate in one bucket for 48 hrs. You'd be left with dead theronts in there, unable to infect fish. This only applies to water however; NOT rocks, substrate, corals, etc.

yeah, this applies when there is only the theront stage in the water, but it should not if there are protomont also in the water.

First i threated them with hypo, for about 1 month, i lost many fishes during that couse i havent cycled that quarantine tank and i forgot to look for the ammonia levels + the "ich" infections from the fishes..
"i learned it the hard way.."
After i got the salinity back up i started with TTM at a salinity between 1.020-1.025
I just realized after the TTM process that when i had don the TTM with Hypo, i would have saved some money and probably made that process safer for killing "ich".. but i also questioned myself, if this was the better way, cause the stress of hypo+TTM could have killed one or another fish also..

I transfered them 5 times, just like it is described here, i also used something similar to that colander to catch and bring them into the new water, but that was only at the end of the process.

I wish very bad that it is only sand, but the size of grains of the sandbed is about 3mm.

The fish that is showing that spots is an acanthurus nigricans/leucosternon hybrid, i keep him in an 240gal tank, with the orange shoulder and an velifer, the other two tangs doenst have any spots at all.
This hybrid was going through the TTM process 2 times, about 10 transfers, then he was placed in the quarantine tank with the "old" fishes, showing his wonderfull color and eating like a hole, no sign of "ich" for about 2 weeks in the quarantine tank, after this 2 weeks the DT was finally staying fallow for 80 days, so i put the fishes back in the DT.

 

[Humblefish]

yeah, this applies when there is only the theront stage in the water, but it should not if there are protomont also in the water.

The protomont is not a free swimmer. It crawls around looking for a surface to encyst upon (thus becoming a tomont.) If you siphon water near the top and not too close to rocks/substrate, the odds of inadvertently sucking up a protomont or tomont are quite low. I'm curious as to how this factors into things. Did you use DT water to do TTM?

 

[xruss]

sometimes i used the water from the DT, but i used it after 48h and changed then the bucket, to a bucket wo has dryed for at least 48h.
Most of the time i used fresh made water in a bucket that dryed for at least 48h.

but i think, the white spots is something like sand, they are are definitely not on the same spot, and vary from hour to hour, day to day..

 

[Humblefish]

but i think, the white spots is something like sand, they are are definitely not on the same spot, and vary from hour to hour, day to day..

Can't be ich then. Ich trophonts (and the resulting "white spots" caused by excess mucous buildup around the insertion point) will remain on the fish for a minimum of 3 days. Same exact spot.