I'm a newbie and need to treat a fish of mine with an internal parasite med?
There are so many different types I was wondering if someone could recommend one that I could get at my LFS
Thanks
Just want to make sure you have a correct diagnosis as from what I understand internal parasites are extremely rare and over-diagnosed all the time. If I may take a quote from a post by nmonk, a very well respected man here on the website and in the hobby with much education in the field...
"Internal parasites" is usually a made-up thing by aquarists that roughly translates as "I don't know what the problem is, but rather than blame poor aquarium conditions or the wrong diet, I'm going to blame some mythical internal parasites that snuck in during the night and attacked my fish". There's almost a 1:1 relationship between the aquarists who blame "internal parasites" for any unexplained deaths and the aquarists who do stupid things like overstock tanks, use inadequate filtration, mix fish from different water chemistry environments, or use feeder fish. On the other hand, aquarists who keep their fish properly almost never seem to have to blame "internal parasites" but explain deaths by acknowledging problems with the wrong diet, wrong water chemistry, etc.
While it is possible for fish to pick up internal parasites in the wild, under aquarium conditions it is very rare because the intermediate hosts (things like [specific species of] snails or water birds, depending on the parasite life cycle) is missing. Wild fish are most at risk, but things farmed outdoors, like goldfish and koi, are also at risk. Your standard community tropicals are not."
I hope the best for your fish and your treatment but felt I should let you know how rare internal parasites are in aquaria.
Drew
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