One year into the hobby and after many losses I am concern with any visible exterior sign on fish. All water parameters are perfect with the exception on alkalinity with is 11. Are this spots a concern? They appear to to flat on the skin. This is day 3 and the fish was introduced in the tank 1 1/2 weeks ago.
is this a consern?
- Thread starter Liviu
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Was at the store for 2 weeks in copper. I did not quarantine this fish and a red angel because no visible sign. I believe is something in my tank and here is way. I took my 75 gal down and quarantine with copper all the fish. I set up my new 210 gal tank with 100 gal sump and a 36W UV light withe a flow of only 250 gal/hour for sterilization. I start the new tank and after 1 1/2 months I add the old fish. Was all good for one month. On a separate QT I had two Yellow eye Kale and another fish for more then two months with out any visible sign. Because of no sign I did not add any treatment to the QT. At the end of the fourth month I introduce this 3 fish. One month pass by with out any issue until I decided to turn off the UV light. A week later one Kale become sick and die, then the second one got ill. I started treating the whole tank with Aqua Pro-Cure and Revive water treatment for marine fish. After this treatment I used Spots $ Velvets salt as a second treatment. Over the duration of the first and second treatment one Brown Clown became ill and recover 100% after a bulging eye and some exterior marks which look like velvet. A Coral beauty angel under blue lights show a lot of erosion and skin damage on both sides and dorsal fin damage but he also recover 100%. Then UV light went back on. The I added the red angel and the Yellow Lip Tang. After a week and a half the tang start developing the marks on his body.
Should I pull all the fish out? What treatment to start?
Thank you
Should I pull all the fish out? What treatment to start?
Thank you
I can only think of two things, off the top of my head, that ought to cause spots like that ... and one of them ("black ich", a turbellarian worm infestation) shouldn't ever create a _line_ of spots, like this tang is displaying. If this does turn out to be a case of "black ich", Prazi-Pro is usually effective.
Do you happen to have an anemone, frogspawn or other stinging coral in the tank? I'm thinking that this may be "hypermelanization", which is a common result of being stung by a cnidarian. If that's the case, the markings should fade on their own.
~Bruce
Do you happen to have an anemone, frogspawn or other stinging coral in the tank? I'm thinking that this may be "hypermelanization", which is a common result of being stung by a cnidarian. If that's the case, the markings should fade on their own.
~Bruce
^^^ Agreed, "black ich" is usually presented as small black dots, not a blotchy pattern as shown in the picture. If the fish is eating and otherwise behaving normally, I would just keep it under observation. It could be a coral sting or something like that.
4FordFamily
Tang, Angel, and Wrasse Nerd!
Agree with both of these as well
Regarding your LFS and copper, they don’t keep them at therapeutic levels. This article may be a good read for you about why LFS do not (and can not, by and large) qt properly.
https://www.reef2reef.com/ams/lfs-fish-“treatment”-the-“sudden”-need-for-quarantine.308/
Thank you all
fish is eating great and there are no larger corals then a $10 frag.
So, based on the quarantine post I should remove the few shrimps, snails and corals and treat the whole tank with copper for 30 days.
here is today picture but in the same light condition but visible better
fish is eating great and there are no larger corals then a $10 frag.
So, based on the quarantine post I should remove the few shrimps, snails and corals and treat the whole tank with copper for 30 days.
here is today picture but in the same light condition but visible better
You should remove the fish - every single one - to a separate quarantine tank, filtered with a sponge on which nitrifying bacteria are growing and furnished with inert materials like PVC fittings, and treat them _there_ for ich - with copper if that's your weapon of choice. Leave the shrimp and other invertebrates in your display tank, without fish, for 76 days. Meanwhile, in your display tank, ich tomonts will be hatching out, and with no fish to feast on, they'll die. They can't eat shrimp, crabs, corals, anemones or asterina stars. The longest of them may take as much as 72 days to release its theront hunter-killer parasites, which is why we keep the fish out of the display tank (in a quarantine tank at least ten feet away, to prevent aerosol transmission) for 76 days, as a margin of safety.
If you try to treat for ich in the display, your liverock will absorb much of the copper, making it difficult to maintain therapeutic levels of copper. When you later attempt to return corals and inverts to the tank, you'll find the rock now _leaching_ copper into the water, making it inhospitable to your invertebrate life.
Treating with copper in your display tank ... is not likely to work in your favor. Now, or later.
The catch, of course, is that you've got a lot of large fish - and would need a large QT to make it work.
The medications you mentioned: "Aqua Pro Cure", "Revive", and "Spots & Velvets", are not familiar to me, but I can tell you this; There is _no_cure_for_ich_ that works in a tank with corals or invertebrates in it. If it doesn't kill shrimp, crabs or corals, it's not going to cure ich. If a medication will eradicate ich, it will wipe out shrimp, corals, crabs, clams and copepods as well.
Here's an article by Humblefish on treating ich: https://www.reef2reef.com/threads/ich-cryptocaryon-irritans.191226/#post-2192627
~Bruce
If you try to treat for ich in the display, your liverock will absorb much of the copper, making it difficult to maintain therapeutic levels of copper. When you later attempt to return corals and inverts to the tank, you'll find the rock now _leaching_ copper into the water, making it inhospitable to your invertebrate life.
Treating with copper in your display tank ... is not likely to work in your favor. Now, or later.
The catch, of course, is that you've got a lot of large fish - and would need a large QT to make it work.
The medications you mentioned: "Aqua Pro Cure", "Revive", and "Spots & Velvets", are not familiar to me, but I can tell you this; There is _no_cure_for_ich_ that works in a tank with corals or invertebrates in it. If it doesn't kill shrimp, crabs or corals, it's not going to cure ich. If a medication will eradicate ich, it will wipe out shrimp, corals, crabs, clams and copepods as well.
Here's an article by Humblefish on treating ich: https://www.reef2reef.com/threads/ich-cryptocaryon-irritans.191226/#post-2192627
~Bruce
Given the information you've shared, I'm not sure why you are pulling all the fish out for treatment. The marks on the Naso may or may not be and indication of disease. I wouldn't go through the stress (on you and the fish!) of pulling all the fish out unless you are sure there is a disease in the tank.
Good point, @Deinonych - @Liviu, do you have a reason to suspect that your fish have ich or velvet? I know that you've had some losses, but do you have a suspected cause?
~Bruce
~Bruce
