Good light as in MH or T5s. Make sure you have a good sized tank with plenty of room for the anemone to grow (30 gallons or larger). Good water quality and run carbon one week a month. Lots of rocks for a BTA and a deep sand bed for any anemone that likes being in the sand. Before you buy a anemone make sure your tank is old enough to support a anemone and know exactly what species the anemone is. Make sure its foot is solid, as in not torn or a hole in it. Bright colored tentacles means its healthy white means its not healthy. If possible ask the LFS to feed the anemone. If the anemone is on a rock at the store ask if you can buy the rock the anemone is attached to. That way there is no risk of tearing its foot. When you bring it home drip acclimate it in a bowl thats in a bucket with a small tank heater set to your tanks temperature, because small bodys of water tend to get colder faster. While acclimating it to your tank cover all powerhead intakes with cheese cloth or sponges. Also try to put a screen on your overflow box. These things will keep your anemone from being sucked into your powerheads and sump. Once you know your anemone is settled in, this means eating and not moving around anymore. If you want to, it will be safe to remove the things that are covering your powerhead intakes. Some people keep them on if they have a BTA because BTAs like to move even after staying in one spot for years or months. BTAs will also move after they split.
Feeding your anemone :
small pieces of silversides, krill, raw shrimp,and mysis shrimp < mysis shrimp only for a snack in between big meals. Feed once or twice a week. I prefer to feed my long tentacle anemone twice a week.
I think this about covers it in anemone class 411. Feel free to chime in everyone if there is something I didn't cover in todays session