Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - Unhealthy Fish
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 11-23-2004, 02:21 PM   #1
Aquarium Advice Addict
 
Join Date: Jul 2004
Location: Northern VA
Posts: 3,005
just curious about sick fish and meds...

I clicking through the posts on AA and I wasreading about people treating their fish when this question popped up in my head. When you treat a fish, you have to do it in the tank (obviously) so they are swimming in their meds. Now, with a human, using a lot of antibacterials can actually weaken the immune system because it becomes dependent. Does the same thing happen when you medicate your fish?? And if so, it would probably be better to keep that fish in QT, without meds, for some time after treatment, right?
__________________

__________________
rubysoho is offline   Reply With Quote
Old 11-23-2004, 04:27 PM   #2
Aquarium Advice Addict
 
BrianNY's Avatar
 
Join Date: Sep 2003
Location: NY
Posts: 4,535
That's an excellent question rubysoho. The answer is rather complex as it depends exactly what you're treating for. I prefer to treat bacterial infections in a hospital tank for just that reason. Also the QT is smaller and will use less medication. When dealing with parasites such as ich or flukes the entire tank and all it's inhabitants must treated.
__________________

__________________
BrianNY is offline   Reply With Quote
Old 11-23-2004, 05:35 PM   #3
Aquarium Advice Activist
 
Join Date: May 2004
Location: Moscow ID
Posts: 182
With regard to the question of keeping the fish in a hospital tank after meds are administered, I think that would depend on how well controlled the ammonia and nitrite levels are in the hospital tank. If the meds cause a mini-cycle in the hospital tank, it may be better to put the fish back in the main tank soon after completing the meds, because you're balancing the stress of transfer and low immunity against the stress of the conditions in the hospital tank. Behavioral considerations also can apply here for sociable and schooling fish.

I am not convinced that a fish would become dependent on meds, but they can kill off normal bacterial flora (gut, skin, mouth, etc). Antibiotics may increase susceptibility to other bacterial conditions immediately after the end of the course of treatment. Anti-parasitics and anti-fungals are more likely to weaken the fish through toxicity mechanisms and leave it more susceptible to subsequent infections.

All in all, I think it sounds like a pretty good idea to leave the treated fish in the hospital tank if the water conditions are good, at least for a few days to monitor health and allow recuperation. Good point, it is not something I had really thought about.
__________________
Nationalism is an infantile disease.
It is the measles of mankind.
-Albert Einstein
poikilotherm is offline   Reply With Quote
Old 11-23-2004, 05:58 PM   #4
AA Team Emeritus
 
Jchillin's Avatar
 
Join Date: Nov 2004
Location: New York, NY (The Big Apple)
Posts: 14,951
Good question Rubysoho! Most of my posts were about sick fish (I've endured ich and a fungus within two weeks). I was thinking that very thing because the fungus seemed to result from the ich treatment (malacite green). When I began the ich treatments, I had 12. I'm now down to 5.

Anyone with some guidance in this area would be greatly appreciated.
__________________
_________________________________
Jchillin is offline   Reply With Quote
Old 11-23-2004, 05:59 PM   #5
Aquarium Advice Addict
 
BrianNY's Avatar
 
Join Date: Sep 2003
Location: NY
Posts: 4,535
The thing with parasitic infections is that if one fish in a tank has it they all do. Plus you're going to have to kill off not only the parasite but any unhatched parasite eggs which are in the tank. Fluke and ich eggs are often on plants and gravel. So you have to keep medicating until well after the eggs hatch. This is one reason why parasitic infections reoccur. People tend to stop treating once the symptoms are gone. Then the eggs hatch and a new batch of nasties are in the tank.

I really wouldn't worry about whether or not a hospital tank has been cycled either. Many of the meds kill off the nitrifying bacteria along with whatever bacterial infections the fish might have. IME the only way to deal with ammonia in a hospital tank is with water changes. Of course, then you have to replace the appropriate amount of meds with the new water. One should also feed a hospital tank very sparingly if at all and remove any uneaten food at once. This is another way of minimizing the amount of ammonia produced.
__________________
BrianNY is offline   Reply With Quote
Old 11-23-2004, 09:20 PM   #6
Aquarium Advice Addict
 
Join Date: Jul 2004
Location: Northern VA
Posts: 3,005
Thanks everyone! It'd be neat to see if there was any scientific evidence like there is with people. Kudos to everyone for answering yet another one of my questions
__________________
rubysoho is offline   Reply With Quote
Old 11-23-2004, 09:46 PM   #7
AA Team Emeritus
 
TankGirl's Avatar
 
Join Date: May 2003
Location: Richmond VA
Posts: 8,974
The other very important thing is to treat with antibiotics for the FULL course, not just for a few days, symptoms gone, stop treatment. This kind of half-treatment (in humans, too) enables bacteria to strengthen and no longer be affected by certain antibiotics over time, so always deliver the full course of medicine per the instructions.
TankGirl is offline   Reply With Quote
Old 11-23-2004, 10:35 PM   #8
Aquarium Advice Addict
 
QTOFFER's Avatar
 
Join Date: Nov 2003
Location: Kew Gardens, NY
Posts: 4,295
I always keep fish in the hospital tank for at least a week or two after treatment has ended and their symptoms have gone. I like to give the recovering fish some extra time to regain its strength in solitude, where it won't be subjected to tankmate-induced stress. Another reason I don't immediately throw recently sick fish back into the main tank is the possibility of them becoming infected with some low-level pathogen that may be present in the show tank, but that the healthy fish are able to ward off.
__________________

__________________
QTOFFER is offline   Reply With Quote
Reply

Tags
ick, rio, sick, sick fish

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Going 'no fish for 6 weeks' is there ANY SAFE MEDS for ich? courtneyclv Saltwater Fish Only & FOWLR 3 10-01-2006 05:05 PM
Fish wasting away... Bought meds... sudz Freshwater & Brackish - Unhealthy Fish 1 06-26-2006 01:06 PM
Fish definitely are too curious for their own good.. Puriti Freshwater & Brackish - General Discussion 8 03-31-2006 02:33 AM
Curious about finrot, and if my fish has it. SpaceButler Freshwater & Brackish - Getting Started 4 01-30-2005 12:25 PM
resistant to meds? or wrong meds? i3k Freshwater & Brackish - Unhealthy Fish 13 08-31-2004 09:40 PM







» Photo Contest Winners







All times are GMT -4. The time now is 05:44 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.