Name that coral...

That sure looks like frog spawn to me. Hammer looks more like a double headed hammer. Who told you hammer? If it was Rick, I wouldn't want to argue, but maybe he miss spoke or I am wrong.

that is a frogspawn some ppl concider all euphillia as hammer coral

It is an aggressive coral that prefers reasonably stable water conditions and uneven flow. It does not require direct feeding, and is very difficult to propagate. The related coral Euphyllia paradivisa is sometimes sold as frogspawn, as well, leading to some confusion.The attractive Hammer Coral Euphyllia fimbriata is a reef keepers favorite large polyp stony (LPS) coral. It is a Euphyllia spp. that is not found around Australia. Yet it does resemble its close relative, the Anchor coral Euphyllia ancora. At times the Hammer Coral is inaccurately called the Anchor coral, or even the Frogspawn Coral E. divisa, but with a close look, you can correctly identify it.The Hammer Coral and the Anchor Coral are very similar except the Hammer coral polyps have hammer or "T" shaped tips. The Anchor corals lack the "T" shape, rather they have semi-circular or sausage shaped tips. Though the Hammer Coral has a straighter and flatter tip, there can be curvature in the tip. There are also very nice branching anchor corals in this genus such as Euphyllia parancora.The identification of the E. fimbriata is determined more so by the shape of the polyp tip than their delicate skeletal structure. Both it and the Anchor Coral come in colors of green and brown, with green or cream tips. This is yet another variation of a beautiful genus of LPS that is moderately easy to keep and a great addition to any display!The Hammer Coral can be easy to moderate to care for. Like others of its genus, it will be the first to warn you that the water quality in the tank is less than acceptable. Providing it with sufficient lighting, a moderate but turbid water flow, and the availability of passing food will contribute to their success.The E. fimbriata has been propagated in captivity. These corals are not hermatypic, which means they do not contribute to reef structures. Yet in the wild it takes 2 years for a colony to repopulate, and there is concern about over collecting these corals. In some countries they have been outlawed for collection. Propagating these corals is very important in preserving the wild colonies.Answer by 

Rick is the one who told me it was hammer. I didnt argue...im new at this too. It was a 20 dollar frag, I looove it!! As far as it being hard to grow, rick told me it it was a crazy fast grower.

i dont know about it growing incredibly fast mine went from 5 heads to 50 in 3years now has about 65 heads