Originally Posted by slitherbomb
No, don't worry. Anemones aren't very difficult to keep. Just keep your water quality high and appropriate lighting. Every once in a while, you could feed him some uncooked seafood. I got my sebae anemone a month after getting into the hobby and it's been doing perfectly, even hosting both my maroon clowns.
Actually anemones can be fairly difficult to keep. They require pretty pristine water conditions and don't live very long in aquariums for the most part. Most of the "experts" maintain that an aquarium should be at least a year old to minimize the dangers of fluctuating water parameters.
That being said... Keep a close eye on it. You are obviously researching now on the care requirements, which is good. You may have found a healthy specimen that you will have great success with. Good luck.