So I added half dose of copper yesterday and today he's really bad. Lying on his side breathing very heavily.
I would like to try hypo. How quick can I reduce the salinity to 1.009? I need to do something quick
Are you using cupramine? If so what I have found is to raise the level slowly over 3-5 days if not an outright emergency to get it up to therapeutic levels. What I have found works best is to bring the copper up in about 8 doses. 1st day I give 1/8 dose and monitor, this also give the fish about 24 hours begin adjusting their physiology to the copper. Also recommend a power head pointed at the surface to get good oxygenation of the water. The on day 2 I give 1/8 dose in the am then another 1/8 does in the evening. Watching the fish before addition of the next dose. If they fish are tolerating it well I continue with 2 1/8 doses each day one in the am and one in the pm until I get to 0.5 ppm. If there is any mild sign of distress I will wait on the next dose to see if the fish adjust or if I need to bring the level down with water change. I have not had to bring the level down dosing this way. I also suggest you test the level when you've added 50% the full dose again at 75%, and then confirm you are at 0.5ppm. I don't trust the volume delivered by a drop and you could be adding more or less than you think so important to check your levels as you go.
I had a similar situation to what you describe following their instructions to add 1/2 the dose on day 1 and the remainder 48 hours later. my copper band threw up his dinner and was breathing heavily, my royal gramma headed straight to the top of the tank also breathing heavily. do the 1/8 dose method I have not had anyone react badly to the cupramine, but then again I have not tried with any wrasses or angels, but have done this with several tangs; kole, yellow, powder brown, and pacific blue tang. None of them even noticed their was copper when dosed slowly like this.
I determined from their instructions and myself with the test kit that Seachem provides cupramine at 10,000 ppm so if you know the real water volume of your tank and how to calculate a dilution you can accurately figure out the volume of cupramine you need for each dose. I like volumes not drops, just don't trust them when administering drugs that can kill if given to much.
What you are seeing sounds just like what I saw when using their directions. You might add carbon, water change then bring the copper up slow. don't think this tang is at risk of dying given the thread so no need to rush the treatment. The other methods discussed are also good, just hypo is a PITA if you let is go up in salinity at all.


