Lol, I'm glad things worked out. I am always hesitant to suggest things unless I try them out first and find they work, even then I am hesitant as things don't always work out the same for others. I recommended a UV sterilizer to someone who kept having unexpected fish deaths eventhough all his water parameters(ammonia, nitrites, PH, temp) were normal. He followed my advise and bought a UV sterlizer. His fish still kept dieing. If I know what I know now(from my own experience), I would have advised him to treat his whole tank with a broad spectrum antibiotic. I am finding that a UV sterilizer doesn't necessarily work on certain types of bacteria known to effect fish health, such as the bacteria that causes dropsy. I just had one fish die of an unknown/unidentified cause and another betta I had to put to sleep due to a bad case of dropsy. I suspect that both suffered from bacterial infections and the UV sterilizer had no effect on the bacteria responsible.