The Puffer Forum

Hi, I'm hoping someone can help me!
I have just recently brought a "Topaz" Puffer fish. I was sold it as a freshwater puffer, but after researching the breed, I have found out that he is high-end brackish! I have now had him for a couple of weeks and he has white spot, I have been trying to change his water salinity to brackish conditions, and I also would like to treat him for whitespot, but with the treatment I have brought it says not to use in Marine tanks. Will I be safe to use in my brackish tank? According to my hydrometre the salinity is a 6 and the specific gravity at 1.004,I have only done 2 water changes so far to change the salinity, so it will be getting higher every week!
I hope someone can help as he looks really bad and I am so unsure what to do next!
Thanks
Cara

Generally speaking, the Ich will die as your SG goes up. One more water change should be enough to knock it out, actually.

Thanks very much for your advice, I have noticed since I did the first water change that he seems a bit more lively, although the whitespot seems to have got worse, he does seem "happier". His eye seemed to cloud over too, but that has now gone back to normal. I have just done my most resent water change this evening and I have been waiting 1 week between changes, should I be changing the water more often to get rid of the whitespot quicker? or would that harm him more?

You only want to change the SG by about .002 per week; extra water changes are generally not a bad thing, just keep the SG going up that amount per week to avoid killing too much bacteria in your biofilter.