I have had my 2 clown loaches for 6 months now, and all has been fin, they come out all the time and we have great pleasure in seeing their antics at feeding time with the other fish. The only thing that I have been doing different is that cause of the sunshine, I have not been putting the lights on of an evening. Late last night I thought I would watch my fish feeding, put the lights on, and the loaches colour looked washed out. They are normally very vivid black. This morning they looked like they were back to normal....Please help don't want to loose them..