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I was thinking that the parasite could be dormant becuase of the low copper concentration in water from the fish stores.
I can not explain why it took 7 weeks for fish to die if they were never treated for velvet and the only thing I can think is that the parasite was dormant, but if that is the case would the parasite still form trophonds the 7 weeks before fish started to die??
or can it be that fish started to die until the concetration of the parasite was high enough, and it took 7 weeks after I recieved them??
please help me make sense of what happened.
Lets suppose that you do the TTM a couple of hours before 36hours. would I have to do an extra TTM to be sure velvet is gone?
you say that using TTM for velvet is just theoretical. have you ever tested this method to get rid of velvet in a fish that you identified with velvet?
another question:
If I use CP as preventive for velvet, do I have to do the full 30 days at 40mg /g?
what happens if I do just 1 week and supposing fish has velvet, but has not shown jet. would 1 week be able to treat and cure it??
I ask becuase at this stage velvet should be in low concetration in the fish??
Thanks a lot
@Dodgersfan It is a hard line to never cross. If you can’t make the 72 hour deadline, transfer the fish before then. Remember:
1. Transfers need to occur every 72 hours OR less, NOT more
2. The total number of days to pass should be 12 OR more, NOT less
3. A minimum of four transfers is required, with more required if doing transfers more frequent than every 72 hours
4. Time of day of transfers does not matter, provided no more than 72 hours elapse between transfers (ignore what you think you know or have heard about mornings being required)
Thanks, that helps. So Its probably best to do the first transfer Monday night instead of Tuesday? Then Thursday, Sunday, and Wednesday and I’m in the clear? Wednesday is exactly 12 days, should I do a 5th transfer at the end or is it not necessary?
Subtherapeutic copper still kills most of the parasites, just not all. So, what you get is a fish with a few trophonts still attached, but also a fish whose immune system has been exposed to the pathogen. Therefore, immunity/resistance to said pathogen begins to develop. If you were to release this fish back into the ocean (just as an example), I would be willing to bet he would be fine. His #1 enemy now is this glass box; where the trophonts will drop off, encyst and then release more free swimmers seeking to reinfect him & any fish tank mates. With each passing generation, the parasites slowly grow in number in this confined space. At first the fish's natural immune system is able to keep them at bay, but its a numbers game he will eventually lose. How long until that happens varies greatly from fish to fish.
Running a UV/diatom will filter out some of the free swimmers, buying the fish more time.
Using an herbal remedy, vitamins, garlic will reinforce the fish's natural defenses and/or boost his immune system, buying the fish more time.
But for velvet, only a chemical in the water (e.g. copper, Chloroquine) can zap the free swimmers and end/interrupt the parasite's life cycle for good.
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I have never tested 36 hour TTM for treating Marine Velvet Disease; it just makes sense to me that it should work based on what I know of velvet's life cycle.
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Using CP @ 40mg/gal for 30 days will eliminate velvet, brook, uronema and most strains of ich. The only exception would be if you happened to encounter a strain of ich that took longer than 30 days for all the theronts to be released from their tomonts. Such strains are probably rare, but who can say for sure?
I second that. Thanks for writing this down - I never knew about this myself and it's appreciated.Deinonych Awesome to have you here! Your help in this forum would be much appreciated!
I would do the transfer on Monday, and also do a 5th transfer at the end.
Better safe than sorry.
So... My only question is heaters and airation. How do I do this without fear of contamination? I have air stones, but I see those are no good.
Can you soak air stones in vinegar, or boil them to sterilize?
Yes to soaking in vinegar; however I would still let it air dry thoroughly before reusing. So, have lots of them you can rotate in & out.
So I missed the 4th transfer day, just so tired I got my days mixed up and realized too late when I was going to do it the following day. It is a diamond goby that has been in an observation tank for 2 months. He has not shown symptoms but the black molly I had in the tank with him for 2 months died right around the 2 month mark. Molly was in that tank for 6 months total and did not show any spots when it died.
Do I need to start over from the beginning at day 1 with the ttm. I put off ttm with him because I have just been so exhausted lately and did not want to deal with all the transfers.
Would you risk it and put him in dd. The thing giving me pause is the molly death.
I think if I have to start over I will just put him back in the observation tank.