Oh, good. So this is an established tank that was moved, along with the liverock and occupants. In that case, don't be surprised if the anemone takes a few days/weeks to settle in and behave normally. In the pic the anemone looks securely attached, which is good. Anemones need ample light and good flow. If you have a 250 watt metal halide bulb, that's most likely ample light. The anemone just needs to be situated where it gets good light, not necessarily directly below the bulb, but not off in a dark corner either. From that first pic, I think your anemone is a bulb tip anemone (Entacmaea quadricolor). This is the easiest to keep of the host anemone species and usually does well if necessary conditions are provided. You should aim to keep the specific gravity in the 1.025-1.027 range, temperature in the 76-82F range, nitrates low to undetectable (preferably), good water flow (tentacles should wave gently in the current, powerhead shouldn't be pointed directly at it), regular water changes (20%/month or so), occasional (once or twice a week) feedings of mysis, squid, fresh shrimp (from the supermarket).
Several of us on this forum keep this species. Feel free to ask questions all you want. Also, if the anemone wanders, it can get sucked into the powerheads or overflows. The anemone looks securely attached, and so hopefully won't go wandering/floating around. If it does begin to move, be sure to put some type of screen or sponge over the intakes to your powerheads--otherwise that can spell disaster.