NEED HELP ASAP WITH MY TRILINEATUS CORIES

Ok I feel guilty and very upset right now. I have 2 trilineatus cories and wanted to add more to my 36g. The LFS only had pepperred cories so I bought 3 they seemed fine no white spots no sores nothing active swimming. The next morning I found 2 dead and one with what looked like blood coming out of its mouth. My parameters are fine 0 ammonia 0 nitrite 0 nitrate ph 6.0.

Yes I freaked out. I immediately got them out of the tank and returned them to LFS they were in the tank less than 24 hrs. LFS salesperson told me they had experienced some problems with the recent fish stock they ordered and the pepperred cories were part of that stock this LFS usually has great fish and this is the first time I have had a problem with their stock. Yesterday one of my white clouds died his belly was swollen and he was pineconed this happenned out of the blue. I check my fish daily and didn't notice this until the day before.

Now this morning my trilineatus cories have white spots on them mostly on its head I noticed a couple on there body and ontop of dorsal tail. They are out of my 36g and in my QT. Now here is the question I am not sure if this is ich or just a parasite. The other fish in my 36g are fine I am going to do a pwc tonight with gravel vac on that tank. I have Maracyn and Maracyn 2 in the house. Is this ok to use on cories? I also have aquarisol which is better for cories? I have not added salt to the QT as I know cories do not tolerate salt well.

I am kicking myself right now:wall: .I just hope the rest of my fish don't get whatever this is. I need help asap I just checked on the cories in QT and they are swimming around active please tell me what to do I am not good at diagnosing disease and I really want to save these cories. Luckily my petstore gives credit for any fish that do not do well they give you 48hrs with new fish and I got a receipt to replace the ones that died once I get whatever this is under control. I am going to keep a very close watch on my other fish in the 36g tank for any problems. I will try to post a pic the white spots are kind of hard to see. Thanks for any help you can give.

When I posted the parameters of my 36g I made a mistake nitrates are 10-20 not 0. I went to my LFS yesterday and one of the other salespeople that knows alot about fish told me to do a pwc and good gravel vac on my 36g which it was due to have this weekend anyway. I keep the temp at 80 degrees all the time she told me to add aquarisol to the tank and just watch the fish. So far no problems I don't see white spots on any of the fish in the 36g so far so am keeping my fingers crossed.

As far as the cories I put them in QT yesterday got a good heater for that tank since my other one broke. I raised the temp in the tank to 84 degrees and added aquarisol and some salt a little less then a tsp. I did another 50% pwc tonight added aquarisol again and salt. The cories are swimming around and active which I am relieved. I am going to treat for one week and see what happens for now on I am going to QT my fish problem is my Qt is only 2.5g so if I get fish can only get one or 2 at a time at the most I don't have room for anything bigger. Thanks for the advise.

UDATE ON CORIES

OK well the cories are doing fine in QT. Aquarisol has copper salts in it and it can be used for ich and many other types of parasites and I think fungus too. You can use it as a preventative treatment or to treat disease and you can use it weekly if need be. My 36g fish are fine no further fatalities the fish are swimming around no problems. I have been doing wc's everyday on the QT and adding aquarisol to that tank. I am wondering how long I should go on treating them with the med. I add 3 drops daily after wc and aquarium salt.

How long should I continue QT for the cories? I am definitely going to QT my new fish for now on before adding to my main tank. My hubby thinks I am going overboard by doing that but I told him look what happenned when I added the other cories to the tank two died and the other was on its way. I am not sure if this was definitely ich since I see no signs of it on my other fish in my 36g no spots. Thank god!!!!!!!! But I am keeping a close watch on them. Thanks for the advise much appreciated.:grinyes:

Yeah I think QT the cories for another 3 weeks might be a good idea but am wondering if it is safe to continue medicating the cories for that long with the aquarisol. I can't see anymore spots on them but I want to make sure that whatever this disease was whether it was truly ich or some other parasite that it is completely gone. Monday will be a week since I started the medication so I know I have to medicate atleast until tomorrow but am wondering if I should continue medicating for a longer period of time.