Looking for advice

[jeff690]

Hi,
I'm looking for some advice regarding my current situation. I am battling a really bad case of ich. I have done many hours of reading regarding various treatments (copper, antibiotics, garlic, hyposalinity. etc.) but I am unsure which one to do right now because I really don't want to stress out my fish any more than I already have. I know I screwed up by not putting them into a qt tank to begin with but I was under the impression it was best to feed them really well with garlic nori and Mysis rather than stress them out in a small qt tank. I've been doing this for 2 weeks and while it seemed they were getting better it now seems that its getting worse. All my fish are fat and for the most part eating but are all covered with spots and breathing a little heavy. No observed aggression. This tank was upgraded from my 28gal nano cube that I have sitting in storage now but was running for 5 years. I transplanted everything from that system on new years day and added some marco rock and aragamax dry sand. Tangs, cleaner shrimp, and more hermits were added 3 weeks ago

My tank specs are:
120 gallon starfire tank 48X24X24
40 gallon breeder sump with 3 sections and 3 filter socks
150 lbs live rock
120 lbs live aragonite sand
Neptune Apex system with WXM, 2 EB8, and AFS modules
Tunze 3155 ATO
Geo 612 calcium reactor
Vertex alpha cone 250 protein skimmer
2 vertex RX-U 1.5 reactors filled halfway with vertex Pro-Bio biopellets
2 Ecotech MP40WES powerheads
2 Ecotech XR30w Gen 3 Pro LED lights
ph 7.9 - 8.1
0 ammonia
0 nitrite
5 nitrate
0 phosphate
1480 magnesium
Alk 10
Calcium 430
all tests done with salifert test kits



My livestock:
2 skunk cleaner shrimp
6 sexy shrimp
2 fire cleaner shrimp
2 pom pom crabs
2 ocellaris clownfish 1.5 inch
1 Powder blue tang 5 inch
1 Chevron tang 3 inch
1 Hippo blue tang 3 inch
1 Diamond goby 4 inch
tank is mostly Zoas with a few mushrooms and a tube anemone



Options available to me:
Leaving them as they are and continue overfeeding
starting up the 28 gal nano cube as a qt
buying a 55gal freshwater system off of kijiji transplating its fish into the nano cube and using it to treat all my fish for 8 weeks while the DT goes fallow
QT with hyposalinity only
QT with cuprimine and possible maracyn 2



As you can see I have invested a lot of time and money into this system and am torn as to which way to go. Right now I am looking for any advice and positive opinions.

Thank you