ICH in Display Tank Help?

[amoahkuc]

Tank Set up:
-200g Pentagon Display with 90lbs of Live rock
-30g sump/refugium
-40W Lifeguard UV Sterilizer
-Dart Pump (2000 gph @ 0 head height)
-2 Korallias (3600gph each)

Tank Inhabitants:
-Powder Brown Tang (5" and the only one with ich)
-Grey Bamboo Shark (14")
-Marron Clown (2")
-Sailfin Blenny (4")
-Long tentacle anemone
-6 Chromis (1")
-10 Hermit crabs

Water Conditions:
-Temp = 82F +/- 2 degrees
-Salinity 1.024 sg
-Nitrites 0ppm
-Nitrates 1ppm

My problem is, I quaratined the tang for about three weeks and I did not see any signs of ich on it. I placed the tang in the main tank and I started to see evidence of ich on it. I sterted soaking its food in garlic and the white spots seem to just cycle about every three days, as in they will go away for three days and then come back for three days.

Everytime (2 times) I tried to catch my tang and place it in the quarantine tank the stress alone accelerates the disease enogh to where the fish passes. Is there anything else I can do? I am curently going to try and drop the salinity to about 1.020 and see if that helps, but that is the only thing I can think of. Any help with this and anything that I can do in the future to prevent this cycle would help. Thank You

Chris

 

[Barracuda1]

You might just want to remove the tang and use medicine like Malachite Green (Copper could work but some say it has long term effects on tangs ) and treat for the full duration of the recomended treatment to get rid of it once and for all

 

[rhkingsfan]

You're going to have problems. You can't just treat the tang and put him back in your tank; the ich will get him again. It's possible that your DT had ich to begin with best your fish just had partial immunity.

I imagine that you have no desire to put a 14" grey bamboo shark in quarantine, so you're kind of stuck.

 

[Triggerfish]

Re: ICH in Display Tank Help?

<a href=showthread.php?s=&postid=14862780#post14862780 target=_blank>Originally posted</a> by amoahkuc
I quaratined the tang for about three weeks and I did not see any signs of ich on it. I placed the tang in the main tank and I started to see evidence of ich on it. I am curently going to try and drop the salinity to about 1.020 . anything that I can do in the future to prevent this cycle would help.

either: the tang had and brought in in the dt OR
it was alread present in the dt and tang being susceptible became a great host for the parasite.

dont bother dropping to 1020..no useful purpose.

options:
1. remove all inhabitants except hermits and treat with copper for two weeks and monitor for additional 4 weeks.

2. remove hermits and treat tank with copper

note: i think i remember reading sharks and copper dont mix very well..cant quite remember though so check it out.