Australian Scolymia Coral – Bleeding Sour Apple
The Scolymia Coral is a large polyp stony (LPS) coral, commonly known as the Doughnut, Scoly, Artichoke, or Disk Coral. It features a round, solitary structure with a single oral opening in the center, though multiple openings may occur in some specimens.
Available in a striking neon green with thin red radial bands, the Bleeding Sour Apple variant displays cup, saucer, flat, or dome-shaped forms. This coral is not aggressive and is relatively easy to maintain in a reef aquarium.
It naturally associates with bivalves such as Tridacna clams in the wild, making it a great companion species in a well-balanced reef tank. The coral can expand up to twice its original size during the day, so ample space should be provided between it and other corals.
| Features | Description |
|---|---|
| Color | Neon green with thin red radial bands |
| Shape | Cup, saucer, flat, or dome-shaped |
| Size Growth | Can expand up to twice its original size during the day |
| Maintenance | Easy to maintain in a reef aquarium |
FAQ
What is the ideal tank size for this coral?
The coral requires ample space due to its potential to expand up to twice its original size during the day. A minimum tank size of 50 gallons is recommended, with sufficient horizontal and vertical distance from other corals.
Does this coral require specific lighting or water parameters?
The Bleeding Sour Apple Scolymia Coral thrives under moderate to high lighting conditions. It prefers stable water parameters with a temperature between 75-82°F, pH around 8.1, and salinity at 1.025–1.028.
Can it be kept with other corals or invertebrates?
Yes, it pairs well with bivalves such as Tridacna clams. However, it should be kept at a safe distance from other corals to prevent physical contact or competition for space.

Abigail Dowd –
Installed the Scolymia Coral in my 60-gallon reef tank with Tridacna clams. It has grown steadily and looks vibrant with its neon green and red bands. The coral expanded slightly during the day, but I gave it plenty of space. Very easy to care for and adds a beautiful visual element to the tank.
Richard Black –
The coral arrived healthy and has been stable for over three months. I noticed it changes shape slightly throughout the day, which is fascinating. I keep it away from other corals to avoid contact. Great color and a nice addition to my reef setup.
Bella Scott –
I was worried about aggressive growth, but this coral is actually quite peaceful. It looks stunning with the clams and has maintained its color without fading. I recommend it for beginners who want a colorful, low-maintenance coral.