Newbie to the site

[mr_knowitall]

Hello, I am new to this site. I started a 30 gallon salt water aquarium about 5 years ago. I had no knowledge other than copying what one of my customers had in their house. I have a bunch of live rock some xenia coral or something that just seems to never grow or shrink and two clown fish that are 5 years old as well. I check my hydrometer weekly and do basic water changes about every two weeks though sometimes i get lazy and skip them and the water gets low and algae forms. I scrape it off and clean it out and start the process again.

I have a fluval filter with bits of broken up live rock inside it and no protien skimmer. My lights are coralife lights with blue and white bulbs that are now 2 years old. I hear I should change them but I don't. So far I have never had any real problems and the tank always looks awesome except when I get lazy and so and so letting the problems mentioned in the above paragraph happen.

I am happy with the way I am running it and I know a lot of extreme fish anthusiasts would say I am doing everything wrong so I am interested in hearing what I can do to improve it. If I bought awesome lights would my corals suddenly start growing?

Recently my friend gave me a green carpet anemone and a little brown fish that looks damsel like. What I am most interested in is how to take care of the green carpet anemone. I read online that you can feed it, so I have been feeding it shrimp and scallops and it seems to love it. Is it true these things can move around? Should I be feeding it? Any other info would be great. Thanks

mr_knowitall