No Coincidence
Myka;39822 said:
Ok, so this has to be more than a coincidence! My fish have gotten themselves Ich twice in the last year. Always on addition of new fish. The first time it was the Espei Rasboras, and this time it was the Cardinals. The ONLY thing I did to treat it was add 1 drop per 10 gallons of Kent Garlic Extreme. In both cases the Ich was cleared up within 36 hours, and I lost no fish. Has anyone else ever tried this?
I do not know the efficacy of garlic curing freshwater ich Ichthyophthirius multifiliis.
I do know many critters like garlic. Since at least the 60’s (19 not 1860’s) I have rubbed, or ‘marinated’ earthworms, liver, shrimp, beef (in the olden days we fed our fish beef, beef heart and liver were popular). Two or three times a week my critters get garlic juice, the Cory’s in particular like their food ‘stunk-up’.

I rub it on Romain, I don’t know that it does any good, but it doesn’t seem to do any harm.
We used garlic for bait, in or on the bait.
I suggest you get rid of the Ich; you pretty much have to treat the tank. I can’t remember the fish you had but they seemed warm water types, push the temperature up, a degree or so a day, you have Cardinal Tetras and such you can get up to 86 F (30 C) for five or six days should do the trick. Be careful in what treatments you use. Tetras and such won’t like salt; otherwise raising the specific gravity to 1.002 would work.
Found a reference on garlic juice dosage of 62.5 mg/L to kill theronts, 570 mg/L to kill 100% of the tomocyst stage of Ichthyophthirius multifiliis, Buchmann et al., 2002. Sounds like a lot of garlic juice!
Two references that look interesting
CIR920/FA006: Ichthyophthirius Multifiliis (White Spot) Infections in Fish and I know they sell stuff but looks interesting
Cause, Treatment, and Prevention of Ich in Freshwater Fish.
Mainly once you cure this, don’t do it again, it is no coincidence or accident.
Nothing should enter our tanks that hasn’t been quarantined or sterilized. Those cheap little Rubbermaid or such-like containers a cheap air pump, a heater, heck, a heating pad will do, just nothing directly into the tank that you haven’t looked at for a time.
Good luck,
Biollante