We got two fish from some friends recently. They were neglected, and wouldn't even eat when they were fed! When we got them, they started to eat, and the veiltail is great:). The second one, who appears to be a doubletail halfmoon got sick with something that looks like columnaris. We started treating it with pimafix, and in a week he looked better. That was a few days ago. Yesterday, he got really bad looking, lost almost all his color. We got bettafix, and started that. He looks a little better now. We have a 2-5 gal. heater made by Hydor, but are reluctant to use it in his small (1.5 Liter) bowl. We are using a hot water bottle to heat him, and the heat varies from 67-74. He still looks bad and is very lethargic. He is eating though. We need help:(!