This coral is a Maze coral, or possibly a brain coral. Like all LPS corals, its base is a calcified skeleton with soft tissue polyps that feed from the water. It loves light, so a tank with Metal Halide lighting would be ideal for best results. Give this coral a little space so that it isn't stung by a neighboring coral, although I did notice this piece extended a sweeper tentacle. Sweepers typically help maintain space to allow the colony to grow. Reef-safe
This coral is in the LPS family, although its polyps are small enough that some might suggest it fits into the SPS group as well. The Leptastrea coral can look quite furry like this image, but these polyps can suck in tightly, showing the green centers clearly.
Mike found this colorful creature completely by accident. His suncorals were somewhat closed up, and this polyp was on the move! Using tweezers, he removed this nudibranch. Odds are it is a Phestilla melanobranchia, a cup coral eating nudibranch. In this case, the animal ate suncoral tissue and as it did, its body matched the coloration of the coral fare. As he couldn't afford to buy Tubastrea to keep this little guy fed, it perished. Not Reef-safe.
Photos by Mike Olier
Lobophyllia are very large polyped stony corals, and do well down low in the tank. Lobos take their time growing, but fill a nice area in any reef. They can eat meaty foods, and can also consume pellet food if that isn't snatched away due to their exceedingly slow response time. Shrimp and fish may grab the food before the coral has time to ingest it.
Photo by Duane Oestreich
This type of Acan can readily devour small meaty foods, and if you happen to see it opened up like these pictures, seize the opportunity to drizzle some mini mysis over the polyps. They'll capture the food like an anemone and consume it completely. Acans can get quite puffy, and grow nicely in a reef system.
Photo by Duane Oestreich
Acanthastrea lordhowensis comes in many colors. Rainbow color is probably the more popular choices because of the greater variety of color streaks in the polyps. If this coral was viewed in the bluer hue so many hobbyists prefer, these colors would virtually glow.
The Pink branching hammer is an easy beginner coral. Just a single head or two can turn into a nice colony within a year or so.
I love all the colors in this tiny frag. It's a lobophyllia, maybe 1" x 1" x 1". Each polyp has a central mouth, and as you can see in the very top polyp it can extend some tentacles to trap food when hungry.
When I got this frag originally, it was a tiny piece with two mouths (often erroneously called eyes). It has grown over the years, but some sky blue still appears in part of the colony. Under intense light, the blue is more dominant. Chalice corals are very brittle, basically a potato chip with colored tissue on top. They grow and encrust over rockwork, and are easily fragged.
The center of every orange spot is a mouth.
Lobos have big fat polyps compared to other LPS corals, and they look great from the side or from above. These two pictures are of the same coral, taken at different angles. While it can be fed directly, I never have.