Need serious help. lost 90% of my tank. velvet? new tank syndrome?

[Jake DiMeglio]

Not in the free-swimming stage, but they can and do attach anything hard, such as shells during the cyst stage. I lost all my fish to Velvet about 6-8 months ago from adding snails. Everything else had been thoroughly QT'd; fish with copper or CP, inverts/etc with 90 days isolation.

So unfortunately I can confirm first-hand this happens.

What would you suggest i do with my tank?

 

[4FordFamily]

it sounds like velvet to me as well. The black spots could also be black ich or they could be the aftermath of velvet IE velvet insertion points on some acanthurus tangs look like black spots after the fact, I've also seen this on sailfin tangs.

I'd remove and treat ASAP and leave the tank fallow for 76 days.

 

[Spar]

What would you suggest i do with my tank?

What Ford is recommending above is the only option, not just IMO but in unfortunate fact. Painful process, but the fish are going to die very quickly unless you get them out of there fast and start treatment. I have a 450g with a lot of rock, and was unable to get them out quick enough, hence all the deaths... thousands of dollars worth of fish.

Note that Velvet dies out much quicker than the 76 day fallow treatment window mentioned, BUT you should also consider other parasites, notably Ich, that do require 76 days. No point in returning the saved fish back until then.

 

[drawman]

Note that Velvet dies out much quicker than the 76 day fallow treatment window mentioned, BUT you should also consider other parasites, notably Ich, that do require 76 days. No point in returning the saved fish back until then.

+1 you may as well treat for all parasites in this instance.

I would also start reading these:

Velvet (Amyloodinium ocellatum)

Marine Velvet Disease (Amyloodinium ocellatum) What You Need To Know: * Fast killing parasite capable of wiping out most of your fish in just a matter of days. Sometimes there are survivors, sometimes not. * Can be treated in a quarantine tank using Chloroquine phosphate or Copper. A 5...

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Fallow periods: Going Fishless

Please see this updated information on fallow periods: https://www.reef2reef.com/threads/45-day-fallow-periods.805213/ Jay Hemdal 7/13/2023 The reason to go fallow (fishless) is to eliminate a fish disease from your DT (display tank). Going fallow works because you are denying the disease a...

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Coral/Invert Quarantine Time Frames

Coral/Invert Quarantine Time Frames Preface: The purpose of this article is to outline time periods required to properly quarantine (QT) marine corals & invertebrates. While unable to host ectoparasites the way fish do, corals/inverts are still able to “carry” fish diseases in one of two ways...

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