Holy Grail Branching Hammer4 Polyps and 3. 5" WYSIWYG and fully conditioned to life in a reef tank! The hottest Hammer out there! It's hard to believe how many colors are packed into each tentacle! This hammer makes me want to do all sorts of things that I can't mention publically! Hammer Corals can handle more light than most other LPS, that said, don't place in par over 175 or so as they can get burned. They also prefer an alternating low to medium low flow. In regards to