I have 6 Lake Malawi cichlids in a 30 gallon tank. They're all about 3 inches long and the tank has been set up for about a year. I've had aquariums before and have never had any issues, so I'm not a complete idiot when it comes to fish, but I still have alot to learn. I recently moved and within the last month or so, their colors seem to have faded. The blue ones are nearly white, and the orange one is also starting to fade. The yellow and black ones seem to be getting darker if anything. I'm assuming (as perfect as assumptions are) that the recent move is the culprit since the tap water here isn't the same as it was in my last city. Unfortunately, I've never had to test for anything other than nitrogen cycle, so I don't know what I should be looking for, or where I should get the test equipment. If you can help point me in the right direction, I'd greatly appreciate it. Nobody likes a sad fish, so help me make mine happy again.