Heyya folks. I had picked up some really good LR on Friday and already my bright purple 4 lber rock is becoming a lighter pink. It's not too important to me, but I really like the look of it. Two NO bulbs, about 2" from the water's surface, one 20w and the other 30 w are all that lights the tank. Water is very hard, haven't checked in a bit, and the Ca is running around 400 ppm. Is it normal to die down a bit after introduction to a tank or will the lighting or lack of really knock it out? Thanks.