Copper Power(Endich) ACP0016B Blue Treatment for Marine Fish, 16-Ounce

Instructions are super clear and easy to use. Product worked extremely well for me as I had a purple tang with velvet and it cleared him up after 15 days of sitting in medicated water. Would definitely use for future use

Great works as intended

I tried another product because I was afraid to use copper but it was a total fail. Bought the Copper Power and a Hanna checker. It saved my fish from what I believe was marine velvet. I will totally use this to treat and quarantine all of my new fish!

Amazon needs to speed up shipping on this item. This is a medication!! If someone needs it, the fish would be dead before the produce arrives. Ordered it a week ago, but shows "Shipped" today! Great product and good to have on hand for obvious reasons as mentioned. Would be 5 stars if shipped within 36 hours.

I've messed around with the "natural" ick stuff and it was really gross smelling and needed weeks to become what they said as effective, and it did not help much. I had fish die from that stuff. And I couldn't deal with separating my inverts for 8-10 weeks at a time when ich came up. Then I used this stuff and it worked so fast! Like other comments said, fish on the death bed can be instantly resurrected by this stuff! But again I did not like to have two tanks set up in my house for weeks while this stuff goes long enough to feel safe enough to put all the fish back in non-copper water. So enough was enough, I brought all my inverts back to the fish store for them to sell again, and made my tank a fish only, always copper tank. I got a 45 gal cube tank and keeping the copper at the right level is now part of my maintenance for my tank. Its great to not have to worry about ick, or to have to hurry and get a medicine tank going and cycled for moving fish to it. I've had my tank for a long time, but I have had it always copper for about a year and a half, and I only have to add a little bit of this every 5-6 days for maintenance. I highly recommend using this for your salt water tank for ich, I however cannot attest to the use of this with inverts, like some other people's reviews, as I have never used it with any.

Pair this with the Hanna HR Copper tester, and you’ve got a winning combo.I have rock and sand in the tank, so there is some absorption. I test and add as necessary. If you search the net for a copper power calculator, it’ll do all the math for you.Got this for quarantining and pretreating new saltwater fish.

Use it for my quarantine tank

Cupramine is what I first used for treatment of salt water fish. And it sadly is very harsh on every fish it treats. If not being very careful it will kill fish. And even then if you are dealing with flame angelfish or puffers odds are they will not survive it.However this formula of copper treatment is clearly much less harmful on the fish. Does not suppress their appetite to nearly the same degree, can be fully dosed day 1 and is much less likely to kill a fish if the copper level in the water ends up higher than your target.This rather uncommon product should be in every store that sells salt water fish. I could not recommend it highly enough. I think those who are still using Cupramine have never tried this product.Bottom line is buy this or if out of stock buy coppersafe. Do not buy cupramine.