Join Date: Nov 2010
Location: Vancouver, WA USA
I had the same issue with buying 18 Cardinal and 12 neon tetras a few months back without quarantine on my 75 gallon community planted tank. 4-5 were showing small signs of spots. So, I went and researched some whether to use malachite green base ich meds or a more natural such as organic Kordon Ich-Attack. My only concern with Malchite green is the staining potential on my tank. i.e. silicone or whatever else. Did not want to use a med tank as I know Ich usually attacks to the weak and the simple fact that ich is usually in confined space such as aquariums all the time. It is a matter of attacking the stressed and weak.
Kordon Ich-Attack result? Well, it is not my fave as it is very foul smelling and turns the water brown. Nonetheless, I turned the heater up to 86 degrees to speed up the incubation period and have the white dots to fall off and free floating. This is where the treatment is effective. It lasted about 10 days and only seemed to slow down the spread to other cardinals and a couple of my Columbia blue/red tetras.
So, what did I do next? Well, I bought a 38 watt UV sterilizer just to assist the situation and remedy for later outbreaks. It took about 4-5 days after for the ich to be wiped out and fully controlled. The ich outbreak left me with no loss on the cardinals and 4 on the neons. My tank is heavily populated with multiple tetra breeds and bottom feeders such as yoyo and blue botia, 8 corydoras, royal and bushynose pleco. Not sure if it was the combination of the 10 day organic treatment with the 38W UV combo that did the trick, but I would do the same thing if an outbreak occurs.