Tang has dark spots all over its body
In the past day or so our blond hair naso tang has developed dark spots all over its body. :-( It's also had light splotches where it should be uniform gray for a while now, but I assumed they were just the result of scratches it got swimming against the live rock. I wonder if that was not the case after all and the splotches were indicative of something gestating inside it?
Does anyone have any idea what this is and what we can do to get rid of it?
I found this
Thanks, kitten penang. It seems my aquarium is having a stroke of bad luck lately. :-(
I gave the tang a freshwater dip last night. I suppose I should try to give all of the fish a freshwater dip this morning before work. I doubt I'll be able to catch the gold head sleeper goby, though.
As far as treatment, I can't leave the main aquarium devoid of fish because it's our only aquarium. As far as I know, we've already been applying hyposalinity somewhat with a specific gravity of 1.018. Should the specific gravity be lowered further? If so, to what?
Is there anything else I can do to help get rid of this? Are there any reef safe medications that may help?
i would not dip the other fish in the tank, only the tang who is showing signs of infection. i would also ride it out without medication. if you can get this guy eating more, and adding garlic and selcon to its food, it has a better chance.
I already dipped the rest of the fish in the tank, except for the gold head sleeper goby who I could not catch, this morning before work. I noticed something appearing to protrude through our passer angel's side, and the fish looked like it was trying to scratch itself on the live rock.
As for riding this out without medication, I spent all morning reading corroborations of what kitten penang posted, that the worms will mature, fall off, and release over 100 larvae each that will attack the fish unless/until the tank is either treated or has no fish in it for 4 - 8 weeks so that the parasites have nothing to feed on. http://books.google.com/books?id=SAd...page&q&f=false
I found a product called Prazi Pro that is supposed to kill such parasites without harming live rock, crabs, etc. and was planning to pick some up after work to use on the tank tonight. You would not use it despite the appearance of the tang and the nature of paravortex?
i did not know after they died larvae was produced, in that case treatment sounds needed. remember though for future issues its sometimes more stressful on a fish to use a chemical, then to let the fish fight off the disease on its own. sadly this fish hasnt been eating well enough for its immune system to be up to par, and im sure thats contributing a good deal to the issue. i would still feed garlic and selcon soaked foods to your fish, maybe even a live blackworm or roe treat.
Thanks, Jon. Coincidentally, the tang has been easting like a champion since I noticed the paravortex on him.
Anyhow, I went to the LFS yesterday and bought Prazi Pro. The directions said to administer it after as large a water change as possible, which was good because it coincided with the last of my 50% water changes to bring my nitrates down.
I turned off my skimmer as per the instructions and added 3 teaspoons to my 55 gallon tank. Hopefully I'll have good news to report within a few days...
Thanks, Kym. I'd hoped to wake up today and find him doing much better, but instead it looks like there are many more black spots and he's doing considerably worse. :-(
I gave him another long freshwater dip this morning, but I don't expect much to come of it since his previous freshwater dip apparently had no effect.
The PraziPro directions say "a single treatment lasting 5 - 7 days is normally sufficient. Retreat as necessary, but no more than once every three days" so it looks like I have to wait until Saturday to dose the tank again since I just dosed yesterday. I hope he makes it that long. :cry:
Prolonged immersion in praziquantel can have negative effects on fish. I would have to check some references but usually I treat with 3 hour baths every 5 days for a total of 3 dips. I think I dose at 36mg prazi per gallon...again I would have to check since I have the drug compounded. I agree with kitten penang and onefish2fish....it appears to be Tang Turbellarian Disease and only treat those individuals affected. Repeating freshwater dips this soon may cause too much stress which leads to worsening of the condition.
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