In fact, it is safe to assume that most fish from a pet store are carrying them – they are THAT common. I don’t recommend ever using chemical-based medications like Praziquantel or Formalin because they are very dangerous to your aquarium environment and the fish that live in it.
Instead, I treat my new fish that have flukes with a natural parasite cure called Microbe-lift Herbtana.
But a low p H will cause many other issues because goldfish need the p H to be around 7.4. There’s a very important step every fish owner needs to take when confronting a problem: TEST THE WATER.
A liquid water testing kit is something every fish keeper needs on hand at all times, especially for emergencies.
Even low amounts will cause irritation, stress and lethargy.
Ammonia and nitrite are two major culprits in causing sick fish.
In fact, if you have bought a goldfish from the pet store, it is safe to assume it has Flukes – both body Flukes and gill Flukes. They clamp on tight to the skin with spiky hooks and feed on the slime coat, causing the goldfish to constantly bleed until it dies.
And the scary thing about these bad bugs is that But it gets worse: By biting the goldfish, they can inject bacteria into your fish that cause other problems, such as ulcers. While it takes a microscope to know 100% that your fish has Flukes, you can spot their symptoms. So, this means that you are going to have to bring out the big guns and buy your fish some special anti-parasite medication.
But before we go on, you should know this up front: If your goldfish isn’t well, there is a big chance that it actually doesn’t have a disease.
The fish may scratch and itch themselves, leaping and darting around in irritation.
Here’s something else: When the case gets really bad, you might see red wounds on the body. For this pesky parasite, salt is again the treatment of choice.
They may be seen in your tank if the fish has been brought in from outside. Fish lice are visible little green specks shaped like discs that can be seen hopping around your fish.
It is actually a crustacean-type parasite that lives by sucking blood (ew! Usually they show up on stomach, chin and around the fins.