Species group: Corals and Polyps
Other common names: Alien cup, Lettuce coral, Hibiscus coral, Palm coral, Carnation coral, Cabbage coral
Scientific name: Pectinia sp.
The Spiny Cup Coral is a unique-looking coral which is noted not so much for its colours but the amazing shapes it can form in. The shapes include cup shapes with sharp points on the edges, inspiring the common name, to maze-like or brain textured domes. They are relatively fragile and not recommended for beginners. Only experienced reef keepers boasting a mature aquarium should consider attempting to care for this species. Feeding of micro-plankton should be provided once per week in the evening, where a commercial coral or filter-feeder food is sufficient. Having a high waterflow is important not only to deliver food to these species but prevent the buildup of detritus or waste near the coral colony. Keeping clean water free of phosphates and nitrates, with high and stable pH and calcium levels is the key to successfully keeping SPS corals such as cluster coral. A steady alkalinity with a calcium level no lower than 400 ppm should be maintained and calcium, strontium, iodine and generalised trace elements should be seeded into the water as directed for continued health.
Green, tan, blue, red, purple, yellow
Flow: Medium - High
Specific Gravity: 1.024 – 1.028
Calcium: 400 - 450 ppm
peacefulnatured corals, experienced reef keepers
generally mundance colouration, high maintenance requirements, novice reef keeper
Very intense, uses a lot of energy
Metal halides were the go-to lighting fixtures in reef-keeping. They are very bright but give off a lot of heat and require a big ballast to start up. I've had over 15 reef tanks that used MH bulbs. Some aquarists with really deep reef tanks use them but most hobbyists go with modern LED reef lighting. You have to replace them every year because the light quality (spectrum) declines over time. Reef LED fixtures provide enough intensity and the right color spectrum for stony corals. LED lighting uses a fraction of the energy and runs much cooler..
From James 621 days ago