It's worked really well on some things and not so good on other but never any deaths....Smells like Robitussen
themadblimper said:Yeah, I noticed that the stuff left a film of gunk on the surface of the water, and if I fed my fish, they would get sick. A few died...I found out the hard way that it was better to use a half of a dose than what is reccommended on the bottle....
When I use half a dose though, it actually works quite well in eliminating fungus and clearing up cuts, abrasions, sores, etc...
You MUST increase the airation in the tank while using this product.