Can I Add Fish If Usings Meds

if you are using medications then it normally means there is a disease in the tank. Adding new fish at this stage could mean the new fish contract the current disease and also add stress to the tank with their introduction. On the other hand, if you are treating for intestinal worms or whitespot, then adding new fish now shouldn't make much difference and you could treat them all at once.
 
if you are using medications then it normally means there is a disease in the tank. Adding new fish at this stage could mean the new fish contract the current disease and also add stress to the tank with their introduction. On the other hand, if you are treating for intestinal worms or whitespot, then adding new fish now shouldn't make much difference and you could treat them all at once.

I am treating for a small pimple like spot on the fish mouth. The meds bottle says can be used when introducing new fish. Melafix and Primafix.

Thanks for help.
 
a small white lump (pimple like spot) on the end of the mouth is often a bruise caused by the fish siwmming into the side of the tank.
If you are using Melafix & Pimafix then yes you can add new fish to the tank while treatment is underway.
 
Keep track of your ammonia & nitrite if you do. Many meds can harm your biological filter's bacteria. For that reason, I'd wait.
 
Melafix is just tea tree oil and wont affect anything. Its not a real medication.
I agree. It's only good for cuts and wounds.
 
It is advisable to quar any new fish before adding them to existing stock.
 
Melafix is just tea tree oil and wont affect anything. Its not a real medication.
Ah, good to know. I figured it was an antibiotic.
Tea tree oil has known antibacterial, antifungal and antiviral properties. It is extremely toxic in large concentrations but if used correctly (ie: in the form of Melafix) can make a big difference to the health of sick fish. It won't cure serious bacterial infections (ie: Columnaris) but many minor ailments can be cured with it.
 

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