[AquaticLife] ICH
If that is all you have, yes it will work. Next time you have to buy salt for your home, get the plain table salt, preferably without any additives or preservatives… although sporadic use of these are also OK if that’s all you have… then you can use it on the fish too… the kind you cook or keep! 
The preservatives have only shown to be a problem when used in outdoor ponds where the sunlight has some kind of effect on the preservatives which causes a problem. Tank lighting, regardless of the name on the bulbs, does not come close to mimicking real sunlight… at least I’ve never gotten much of a tan under the fluorescent “Daylight” bulbs in my office. LOL
If you buy the kind \Steve// recommended, then you could use a pepper grind and use it to grind the larger grains if you want to also use it for your dinner.
After the goldfish have acclimated to the higher 78F temp, you could try bumping it up higher as long as you provide plenty of oxygenation with air stones and raising the filter a little to create more surface agitation. My ponds would often reach into the low 90’s during the hottest parts of the day down here and I never lost a fish as a result. Of course, those were healthy long-bodied goldfish, as opposed to not-so-healthy round-bodied goldfish. Make sure the tank temp doesn’t rise too fast.. no more than 2F per hour and slow it down if the fish start to act too stressed.
Lenny Vasbinder Fish Blog - http://GoldLenny.blogspot.com (Links to any articles referenced in above reply are listed on the right side, alphabetically under Labels and also under Archives by Year, Month)
Category: Philippines Internet Koi Society
