Jungle Fungus Clear kills Biological Filtration? Night Owls, Help! Recently we had a male guppy who had some white-edged nasty stuff on his tail, which recently turned red. We concluded it was the beginning of some tail rot fungus, and today we bought Jungle Labs Fungus Clear and used it on our 20-gal tank. After using it (always after), I read that the active ingredient Methylene Blue kills off your biological filtration bacteria!!! Our tank just recently finished its' cycle, with ammonia at 0 and Nitrites at ~.2 with the last test yesterday. Immediately, I removed the sponge and the Biomax bag from our Aquaclear 70-gal filter and put them in plastic bags in the fridge with a bit of the old aquarium water from before we used Fungus clear (lucky we had a bit, we were soaking the carbon in there) Added a bit of special blend to try and save whatever is left. Removed the anacharis because I also read it kills your plants. I'm very worried that the Fungus clear will shut down the newly-established cycle very fast, but the worst part is that I have to leave tomorrow and I won't be back until a week later...and I'm really dreading returning to a tank full of dead fish:'( (right after we got it right too!) Is there anyone out there who has used Fungus Clear with a bad effect on their biological filtration and live plants (specifically anacharis)? What would be the best course of action right now? Any help would be so so much appreciated, hopefully I'll get some responses before I have to leave tomorrow (4AM) Basic Stats Ammonia - 0 Nitrite - ~0.2 Temp - ~82 ph/nitrate - NA no test Tank - 20gal with Aquaclear 70 filter Fish 10 guppies 6 zebra danios Night owls, help me save my tank!!