“It is critical that you have people that are professionals all the way,” Causey said. “It will definitely weed out those that are not serious about it.” Copyright (c) 2004, Chicago Tribune A damsel/fish problem In my marine biology class, we recently got 4 blue damsels, 1 yellow tailed damsel, and 2 4-striped damsels in. They were distributed blue blues to each tank, the yellow in one, and the striped in the other. Within a few days one blue damsel in each tank got the “lockjaw” that I have been investigating. They were each in separate environments for about 2 to 5 days, so I don’t think it has to do with the environment, and it hadn’t injured itself on anything. Both fish had died by the next day. We dissected one and nothing was stuck inside to prevent the mouth from closing. Today another blue fish has this same lockjaw, and we don’t know what to do to cure it, if there is a cure. So unfortunately we assume it will be dead in the morning. Could you ema