I have a 46 g reef w/ live rock , xenia , a few mushrooms , a condalactys anenome and 4 fish (blue tang , gramma , 2 perculas). I just replaced my compact fluorescent bulbs--1 65w smartlamp-blue w/ 10000k and 1 65w 6500k--10000k .I have crushed coral on the floor and it is getting an orange kind of algae-like coating since the bulb change--anyone know what this is? My tank has been established for 3 years and this is new to me.
