Well, LB's tank still isn't cycled and I really need to medicate him for his fin rot. He was a little scraggly and medicating him in the vase has not been working. This morning I when I checked on him, he had a hole. So now I am thinking that I need to get him out of the vase and into the tank where I can control the temp. I have been doing 50% water changes on the vase, but lying on the marbles has caused his fin rot, I'm sure. The tank is cycling the ammonia, but the nitrites have stayed at 2.0. I have done 2 50% water changes on the tank and it is still at 2.0. Any suggestions? I know I need to medicate him, but it is not working in the vase and it is very hard to determine the proper dosage.