watermelon said:
Why do you want to argue with a Koi vet, Dr. Johnson when at his site, it states use non iodonized salt or aquarium salt..I dont know much about what type of table salt they have in the supermaket so I just go for aquarium salt..If you want to use any type of table salt, that is fine with me but I would not do it!
http://www.koivet.com/html/articles/articles_details.php?article_id=22&category=17&name=
Just because someone has a few initials after their name that does not make him or her infalible, does it? He's a koi "expert" -- we'll stretch that to fish in general to give him the benefit of the doubt -- but does that mean he's also a water chemistry expert? Organic chemist? Tropical fish expert?
Dr Gerald Allen is an acknowledged fish expert, but he has written some pretty poor books on aquarium plants. Why not? He's not a plant expert.
I'm not deriding either of the above, I'm just stating that someone who is an acknowledged expert on one type of fish does not automatically make them an expert on others.
Now, I've read Dr. Johnson's article and a few others he's written. They are great stuff, but they really are geared towards koi and goldfish.
In regards to his ich treatment: the list he's given of fish that can be sensitive to salt is rather misleading. His instructions are for koi and other coldwater fishes, not tropical. To explain:
1. Recommendation of SG 1.002 from Daveedka, not 1.003 as by the koi vet. Ich will die with 2 teaspoons per gallon. IMO 3 teaspoons is overkill.
2. None of the fish on his "senstive" list will have problems with salt levels of SG 1.002, unless they are already in a bad way. The fish he has listed are "soft water" low TDS fish. Increasing the salt to 3 teaspoons per gallon as he recommends will increase the TDS of the water and stress those fish. This will also adversely affect their ability to osmoregulate. It's not surprising that he doesn't recommend using his method to treat those fish.
3. A temperature of 80* is the normal ich recommendation for cold water fishes such as koi and goldfish. Tropicals are, on average, kept around 80* normally and can thus go much higher than that.
4. An SG of 1.002 for the time it takes to treat for ich will not harm plants at all. There is no need to remove them from the tank.
5. I prefer to recommend that treatment be continued for 7 days after the last visible spot disappears rather than a specific number of days. This will help prevent undertreatment and a reoccurence of the parasite.
The rest of his article is excellent. Aeration is a must, especially for O2 intensive fish such as koi, goldfish, rainbowfish and others. Partials to remove the salt, absolutely. His dosing regime for the salt is great as well.
I reiterate, it's a great article and I have a lot of respect for the Koi Vet, but it is definitely geared towards cold water fishes.
When it comes to tropicals and aquarium fish types that we keep, I'd rather go with RTR and Daveedka's advice. It's tried and true for tropicals.
HTH
Roan