I recently have been treating my freshwater (30 gallon) tank for Ich.
I did not realize how bad the situation had gotten until I saw my bala sharks with white dots. They passed on, so I decided to treat the remaining fish for ich, since surely they were infected with it as well.
Currently my fish population is 7 tiger barbs, 5 rosy barbs and 3 cory catfish.
I treated with Rid-Ich+ for 6 days at half strength since what I have read is that I needed to treat at half strength because of the corys.
On Friday I did a final 50% water change replaced my filters and added some extra carbon to my Filter (emperor 400).
I tested my water Saturday, all is fine with Ammonia =0, Nitrite = 0, Nitrate = 5ppm, Water temp is between 76 and 78 degrees.
What I am concerned about is the behaviour of the barbs, most of them seem to be kinda hangin around the bottom of the tank and not much else, and from what I can observe I would say breathing rapidly. They show no visible signs of Ich (no white spots), I have seen them scratching some, but not alot.
Is it possible that they still have Ich and that I need to continue treatment ?
What could be causing there strange behaviour ?