Aquarium Forum A forum devoted to aquarium fish, plants, techniques and fish keeping as a whole. en Changing colour cichlid<script language='JavaScript' type='text/javascript'> <!-- --> </script> Hi, I'm here for my Dad who has a tropical fish tank (huge) but unfortunately, no internet! He has four lemon cichlids and about a month ago he noticed that they were changing colour from vivid yellow to a dull grey especially aroung the mouth and fins. Can someone tell me why this happens and what, if anything, can be done to get them back to the vibrant yellow they once were? Is it diet related? His water is perfect on all acounts and feeds a balanced diet. Thanks to anyone that can help. lardycat 2008-09-12 Answer no. 1 Pictures are needed. Something like "before and after". Otherwise it's hard to say. Anyway, these cichlids should be yellow all the time. So it can be some disease... jan 2008-09-15 Answer no. 2 i have green sevurems and they chang colour when they get worred like when i chang the water. is the tank agresiv or could they be unhappy publics-assassin 2008-10-23 Answer no. 3 are there any hiding places in your tank where they can get away for periods of time, it sounds a bit stress related to me. What else do you have in the tank? mickey 2008-10-23 Answer no. 4 only the sevurms but its only a new tank so not setled proply yet publics-assassin 2008-10-26