Is Copper Sulphate Safe For Fish Treatment?


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Copper Sulfate, Is it safe?

Many people have had a bad experience with, or are afraid to use Copper Sulfate on their fish because they have been improperly informed on the mixing, dosing, and usage of this product.

What Copper does to aquarium?

Copper Sulfate is pretty much an all-around treatment. It is an Algaecide, meaning that it kills Algae, it is Anti-Bacterial, Anti-Fungal, works on external Protozoa such as Ich, and works on Oodinium, Sliminess of the skin, and kills certain parasites such as Cryptocaryon irritans (Saltwater Ich) and Crustacea (Argulus). It also works as a great preventative treatment for most all fish, freshwater, or saltwater. We used to use it on Gill Flukes years ago, but now, the Gill Flukes have become resistant to this treatment.

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Do Not Use with KOI or Goldfish – Great for large pond or deck that has been overgrown with algae.

This is for large bodies of water, not for pools, decorative ponds, fish tanks, water features. It is better to start with less, you can always add more.

How to mix up a Copper Solution properly:

Stock solution= 21 grams of Copper Sulfate + 21 grams of Citric Acid Crystals to 1 pint of distilled water. Shake well. Use 1 drop per gallon of aquarium water= .15ppm. Why use Citric Acid with Copper? Simple, it sequesters the solution to make it stable. Copper does not readily dissolve in water. The Citric Acid helps it to dissolve completely and prevent Copper levels from bouncing around.

How high can I run Copper?

Safe levels are .15ppm to .20ppm. Any higher may burn the fish and leave them with red sores on their sides. It is very important to use a Copper test kit when medicating with this product.

How do I remove Copper?

A common misconception about Copper is that it can be removed from the water with activated charcoal. It can only be removed by either doing water changes or by using E.D.T.A. (Ethylene Diamine Tetra Acidic Acid) to chelate it out of the water. Remember folks, there is no such thing as a “Chelated Copper Solution”, as “Chelated” means “Inactivated”. The proper terminology would be “Sequestered Copper Solution”.

Warnings before using Copper:

Although Copper is safe at the correct parts per million, there are certain things that Copper cannot be used on: Saltwater Sharks, Invertebrates, and for sure… reef tanks.

Also, be careful if using Copper to kill algae. When you dose the tank, the Copper readings will disappear, because the algae will suck it all up. Then the algae die and release all of the Copper back into the water.

Copper is a heavy metal ion and is considered a “Poison”. Care should be used when handling this product.

Depends on your proposes of using copper sulphate, you can also check out these popular alternatives.

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Complete and concentrated conditioner for both freshwater and saltwater fish tanks, working hard to remove chlorine and chloramine.

– Just a few drops will clear up an entire tank. It doesn’t take much to make a difference.
– This product will keep your fish and plants safe from harmful chemicals.
– Even shrimp, which are more sensitive to chemicals than fish are safe with this formula.
– This product works instantly.
– Could also be used in small fish ponds.

**I do recommend that you change the water in your tank and use this water primer during each change at least every 4-5 weeks.
** Also recommended that you try to keep away from small children.

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Please be sure to read the directions & be careful with the calculation! – Great for snail problems. However don’t use this if you have shrimp, as they will also die along with the snails.

Great also for treating sick fish (having Marine velvet or Ich that is). This to me is one of the best ways to aggressively attack fish parasites before is too late. Quarantine the fish then immediately put this product in the tank and you’ll see the fish coming back to life in a matter of days.

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