Definitely not big enough for serious anchoring. Your anchor and chain choice will depend on where you plan to anchor - depths, weather conditions, types of seabeds. There are many different types of anchors and the newer (sometimes called new generation) anchors do not necessarily rely on weight, so you need to look at what the manufacturer recommends for your size boat.
A Lewmar Delta is a common general purpose anchor and is the type supplied by Bavaria now on new boats. Those who anchor frequently such as liveaboards tend to favour anchors such as Rocna, Manson and Spade which because of their design tend to be lighter for size of boat than older designs.
You also need to consider whether the anchor fits your bow roller and you have the correct size chain and windlass to deploy it effectively.