Emergency over (whew!); how long to hospitalize?

Jim Sinclair

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This has been an utterly hellacious week. Multiple nights in a row of sleeping only 1 to 4 hours, on the road hundreds of miles, and on Monday my sweetest, lovingest, cuddliest, most caring and nurturing cat died suddenly.
So I've been reeling emotionally from that, and it took about a day and a half to make and implement arrangements for a necropsy in hope of getting an explanation.
This is why the goldfish did not get the water changes they should have, why I did not notice uneaten food accumulating, and why I found what I found when I finally did a water change late last night:
one fish floating right side up, conscious and mobile, but not very active and upon taking a closer look I noticed raggedy fins and a general impression of fuzziness. I set up my hospital tank (a 7 gallon Sterilite storage tote) with clean water, a double dose of Prime, and salt, and put the fish in there.
Then I began doing a double water change in the tank. (By the way, this is not the same tank whose filters clogged a couple weeks ago. This is one of the tanks in the basement.) As the water level receded I saw another fish lying on its side on the tank floor. Fins quite ragged. Fish was alive but not moving anything except mouth and gills. I moved to that one to the hospital tank too, and given the appearance of fungus on both fish plus labored breathing of the immobile fish, put in a few drops of methylene blue.
I did a 2/3 water change of the tank, vacuumed out the uneaten food, and rinsed and squeezed out (in a bucket of tank water, not tap water) the filter media. The fish in the tank appear to be all right and ate a small amount of food. I stayed and watched to make sure they didn't leave any uneaten.
When I finally went to bed around 3:00 a.m. the one fish in the hospital tank that had been mobile but lethargic was still mobile and lethargic, and the one that had been lying on the floor immobile with labored breathing was still lying on the floor immobile but appeared to have somewhat less labored breathing. (It's a little hard to tell for sure once the water is blue.)
I went to bed still grieving for my cat and now also feeling totally miserable about having neglected my fish.
Today the goldfish in the hospital tank are alive, active, responsive, and swimming around normally.
I can't really see fin edges or fuzzy scales because of the methylene blue, but last night there was a definite impression of body fungus and ragged fins.

So now my question is: Should I keep them in the hospital tank with the methylene blue and with a slightly higher salt concentration than is in their regular tank, but without a filter (because I don't have an extra filter to put in that tank)?
Or should I return them to their regular tank which does have salt (1 Tbsp/5 gallons) and filtration and more room?
 
This:
The all white one is the one that was mobile but lethargic, and appeared to have ragged fins last night. The white and orange one is the one that was lying on the floor struggling to breathe.
Obviously they are doing much, much better now.
They are not happy in the hospital tank. It's small, it's boring with no decor, it has no hiding places for security, and it doesn't have a filter. But obviously being in there overnight is what saved their lives.
How do I know when they should be released from hospitalization and allowed to go back to their usual tank?
 
Hi, sorry I don't have an answer for you but I am so sorry to hear about your hell week and I hope the coming weeks aren't as awful. I'm so sorry about your cat, and I am relieved that at least your fish pulled through! Without any better advice, I would probably do what the methylene blue bottle says to do, and when the treatment there indicates it is done, move them back. You rightly express concern that you are trying to balance treating the fish without causing more harm by having them in a non-ideal environment. I'm sorry I don't have good advice for you but hopefully someone else will be by with better help!!
 
The methylene blue bottle didn't have instructions for how long to keep fish in a separate tank, only instructions for how much to use and removing carbon from the filter, warning that it would stain things, etc.
In the absence of any responses here until days later, I ended up putting them back in their tank before I went to bed late Thursday night. All seems well so far.
 
sorry that nobody else was available to give you any better advice. I am glad to hear that the fish seem to have pulled through! here's to hoping no more tank disasters for the next while for you!!!
 

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