Fritz Aquatics Mardel Copper Safe Treats | Size: 118ml (4oz) | Aquarium Fish Medicine | Indian Fish Monsters (IFM)

I mainly use copper treatments in moderation when introducing new tank mates and as a prophylaxis. Copper is also effective at controlling algae blooms. However, be sure to research which types of aquatic inhabitants don’t tolerate copper treatments.

I have used this product for decades. I used to buy it in bulk. 80% of fish diseases are parasites of some kind. This pretty much kills them all. A little bit goes a long way. Unfortunately, copper's effectiveness at killing invertebrates is not limited to your home aquarium. Wastewater treatment plants do not take out much copper, and everything you put down the drain (water changes) is released by the wastewater plant into rivers, streams, lakes, or the ocean. Copper sulfate disrupts the food chains of aquatic habitats by nuking all of the insects, mollusks, crustaceans, animal-plankton, worms, etc. It starves wild fish, amphibians, small reptiles, and shorebirds. Therefore, it is a last-resort medication. For fungus, use maroxy instead. For Ich, find a malachite green medication, or use "quick cure."* I actually keep this product around for my houseplants: copper sulfate is a known fungicide, and it's slightly antibiotic. I use it for root rot when natural remedies (Ginger, cinnamon, coffee grounds, granulated sulfur) fail. It is a last resort treatment for this too, and I never put it down the drain. *Quick Cure® is lethal to pet shrimp. Move sick fish to a hospital tank before treating for any parasites if you have shrimp in the tank.

I very rarely review products but this is an exceptional product. I had a group of swordtails and other fish that all came down with what appeared to be symptoms or ick or velvet (flashing, darting, shimmies, clamped fins, listlessness, etc.) but with no spots or dusting typical of those infections or heavy breathing indicative gill flukes, for example. My go-to treatment for ick and velvet is salt, which is usually effective; and these fish being very salt tolerant, I dosed a tablespoon per gallon, which I thought would have knocked out damn near anything. Well, despite a very temporary improvement, the symptoms persisted and the fish continued to suffer. Rather than trying a myriad of other treatments specific to only certain parasites, I decided on coppersafe - something that can knock down many different parasites. I pulled my snails out of the tank and dosed and the fish recovered within a few hours, fins up and moving and behaving normally. I don't think I'll know what these fish had but this product was highly effective at taking it out. I consider this a first line defense for anyone struggling to battle these symptoms, just make sure you remove any inverts as this stuff will kill them too!

Used to treat a 75 gal aquarium for flukes. You have to re-treat the water when doing water changes, so the 4 oz bottle doesn't last very long if you're changing water like you should. I did notice less flukes after treating, but I don't know if this lasts long enough in the water to cover the life cycle, as it does not kill the eggs.

I had put a snail in my betta fish's tank. He killed it. Then he started "sliming" everything, this black icky slime. When I looked it up they called it rust. My beautiful blue betta was grey, he was sick. 14 days after adding this to a clean tank with new decor, Dude is beautiful. He is blue, he is lively and NO MORE Slime. I highly recommend...a little goes a long way.