First, your salinity is to low…you want it more around 1.025. Second, you need very intense lighting for your carpet (you want around 8.5 watts a gallons). Also, carpets in general have a very high mortality rate in captivity, many are extracted incorrectly or are damaged in route and might live a month in captivity before they die. I’d suggest a rock anemone to start with, they are fairly hardy and will host come clowns (my two Clakii’s love mine).