platy problems

5th day of Maracyne, two goldies still show signs of fin septicemia, tail rot, possibly dropsy. I isolated them in a q-tank. 3rd goldie, shark and the rest of the fish are OK. Maracyne booklet sais 5 days treatment may be repeated only once if necessary. Shall I proceed with that on all fish or just the sick goldies?

Another thing, I heard some aquarists maintain a constant low level of salt in their tanks for safety. How can one control that? Are there any salt concentration tests available?
 
...pet store also suggested Melafix. I'd like to give it a try, as Maracyne didn't seem to help much. Can I apply it right after the Maracyne treatment? Shall I do a water change first, wait for a day? I'd also like to do the hardness treatment asap. I was thinking about this:

1. 25% water change
2. hardness treatment (1 day)
3. Melafix 7 days
 
I would suggest doing more Water changes, poor water conditions may be your issue. How old is this tank? I have seen curved spins on fish before but doing regular water changes and changing charcole regularly will help. reason why your fish are getting infected is that they are stressed, fix the stressing issue and that is your problem.
I agree with Orion Girl, one problem is the Goldfish with tropicals, its a bad idea and a train wreck waiting to happen.
 
My tank is about 6 month old. Filters have been changed very recently. Except hardness, which i'm gonna treat now, the other params are ok. I'm afraid simply changing the water won't heal the goldies, i think i'll try melafix
 
Flavius said:
My tank is about 6 month old. Filters have been changed very recently. Except hardness, which i'm gonna treat now, the other params are ok. I'm afraid simply changing the water won't heal the goldies, i think i'll try melafix
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I wouldnt worry about hardness, many old timers here refuse to use chemicals to treat water quality such as hardness. But I still recommend doing more water changes. It will help your fish in the long run.
 
oriongirl is right. goldies don't just have different requirements they also create mor waste than other fish.
 
I need some serious help here, my headcount literally cut to half. I had 2-3 of each specie, now look what's left... Another goldfish died today in the q-tank. Another one is still hanging there but has fin septicemia, fin rot and body fungus. Was anyone succesful in treating any disease, cause my succes rate is about 10%. The guys in the main tank are OK though, except the bent spine platy. Swimming and eating well otherwise, pretty active too (isn't this guy just getting old or something?).

The summary:
- everything was fine until like 2 weeks ago when I bought a sick shark that died the next day.
- soon 2nd shark got sick, but got cured quickly with some salt.
- then one angel got sick
- started 5 day treatment with Maracyne
- angel died
- 2 goldfish got sick
- end of Maracyne, isolated the 2 goldies, continued treatment with Melafix, as Maracyne didn't seem to help

Now my main concern is that the main tank is still infected but the existing fish are just too strong for the disease. How do I figure that out? Will those bacteria eventually just perish if they don't find a host?

Then what if the Maracyne did kill the beneficial bacteria as well?
 
Flavius you are not basically reading our posts, Hardness is not an issue but pretty helpful for platies, most live bearers like hard water.
Goldfish also do well in hardwater, I would not do additives to your water but instead do more water changes. Goldfish are messy fish and stress out other fish. This is the reason why you have your problems. Goldfish and tropicals do not mix.

It looks like you are adding salt and other chemicals to the tank that is stressing everyone out and not doing proper water changes.
Plus if you used any type of Antibiotic in your tank, ALL BACTERIA will die off, good or bad, they are dead.
 
It's hard to decide who to follow. OrionGirl suggested on her first posts that water is too hard, and it was indeed 220. Now you say it's OK. By the book it should be 60. Why all this science then if we don't follow it?

Guy at the store adviced salt is good once a month. Besides that, there were no chemicals added except the tap water conditioner, which I believe everyone uses and the pH reducer once a month maybe. Yesterday I indeed used the softener pillow, but that's far after my problems started. Is there any way to avoid any chemical? As far as I know boiling won't eliminate chlorine and chloramine.

Who said I didn't change the water? 25-30% boiled/treated water every 2 weeks.

OK, I agree about goldfish, I'll do something about it. But believe me they were all OK together for month, no diseases, no signs of stress. You can't convince me that in this particular case stress caused by goldfish killed the other ones, since goldfish are dying too and we are talking about clear bacterial symptoms. In my understanding stress does not cause a bacterial infection. Correct me if I'm wrong.

Now if all the bacteria in the tank are dead, how comes the fish didn't cure? Is there any medication that is known to be working?
 
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