If you have T5s, then your lighting is sufficient. If your signature is correct and your tank has been set up for 2 years, than that's a good timeframe to be ready for an anemone. They usually don't do well in tanks that are less than a year old, so if your tank is newer than a year you should probably think twice about getting an anemone right now. Also, make sure your water quality is good. They need pristine water conditions with very low to no nitrates whatsoever.
Be careful about what species you buy too. Bubble tip anemones are considered by far the easiest to keep and are the most recommended. Carpet anemones have a thing for catching and eating fish, so stay away from them. Sebae anemones can be impossible to keep, so I also don't recommend buying those.