Green Astreopora F2

£23.00

Minimum Size 28mm
Due to the nature of corals, colours may vary slightly.
  • Green Astreopora
  • Astreopora sp
  • Hard coral
  • Care level: Moderate
  • Suitable for: Intermediates
  • Light: Low
  • Flow rate: Moderate
  • Food: Photosynthetic can be offered fine meaty foods

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Green Astreopora is an eye-catching encrusting coral. Polyps are vivid green, set on their own raised mounds on a dark surface. Patterns on the coral changes as the polyps open and close.

Please note that the images displayed on our website are intended as a guide only. We have done our utmost to provide the closest representation possible for this type of coral, to help give an idea of what to expect. Corals are living organisms that can exhibit significant variation in colour and appearance due to a range of environmental and genetic factors. For example, the following are a few examples of conditions that can influence how corals look:

  • Lighting: The brand, spectrum, intensity, and duration of light play a major role in how corals display their colours.
  • Transit: Corals may change colour after being moved. They may either regain their original appearance or adapt to suit their new environment.
  • Water Chemistry: Elements such as pH, salinity, and trace minerals can subtly or significantly alter a coral’s appearance.
  • Nutrition: The availability and type of nutrients can affect both colouration and growth.

With this in mind, please be aware that actual specimens may differ in appearance.

Natural habitat and distribution.

The genus Astreopora is a group of reef-building corals, native to the tropical Indo‑Pacific region. There range includes the Red Sea, East Africa, Australia, Japan and the Philippines.

They Commonly inhabit shallow reef zones, including reef flats, slopes, and well-developed reef structures, although certain species also grow in turbid or deeper waters.

Symbiotic Relationship

Like many corals, Green Astreopora maintain a vital symbiotic relationship with zooxanthellae—a type of photosynthetic algae that resides within their soft tissues. These microscopic algae live in a mutually beneficial partnership with the coral. Through the process of photosynthesis, zooxanthellae convert sunlight, carbon dioxide, and water into oxygen and organic compounds, such as glucose and amino acids. These compounds are then shared with the coral host, providing most of its daily energy needs.

In return, the coral provides the algae with a protected environment and access to its metabolic waste products, such as carbon dioxide and nitrogen, which the algae use to fuel further photosynthesis. This tight-knit relationship supports the coral’s growth and is responsible for the vibrant colours seen in coral tissue.

However, this relationship is delicate. If environmental conditions become stressful, such as during elevated sea temperatures, poor water quality, or prolonged lack of light, the coral may expel the zooxanthellae in a process known as coral bleaching. This leads to a loss of colour and energy source, potentially threatening the coral’s survival if exposure to stress is prolonged.

Keeping Green Astreopora Healthy.

Green Astreopora are considered moderately easy to keep due to their relatively robust nature, making them suitable for both beginner and experienced aquarists. They are relatively resilient but can be sensitive to rapid changes in water parameters. Meaning they should be added to established aquariums. If unsure, feel free to ask us for advice.

Space is needed between Green Astreopora and neighbouring corals to prevent them stinging each other.

Light Level.

Green Astreopora are very responsive to light and do better at lower intensities. Different light intensities and different spectrums can cause changes in hues, shades or change the colour entirely.

Placing them in a part of the tank that receives indirect light, or using a light that can be adjusted to medium intensity is ideal. Too much direct light can cause bleaching, while too little light can impede their growth.

Flow Rate.

A moderate flow rate is best for Green Astreopora. The flow should be strong enough to keep debris off the polyps but gentle enough to allow them to expand fully and feed. Positioning them in areas of the tank where they receive indirect flow is ideal.

Feeding.

While Green Astreopora derive a significant portion of their nutrients from their symbiotic algae, they do benefit from additional feeding. They can be fed small meaty foods such as brine shrimp.

All our corals are fed on Coral foods such as, amino acids and plankton. Target feeding with a pipette or coral feeder helps ensure the food reaches the polyps directly.

Reproduction.

1) Sexual Reproduction.

Most corals, including species like Astreopora, engage in sexual reproduction through a process known as spawning. During spawning events, corals release eggs and sperm into the water column simultaneously. This typically occurs in a synchronized manner, often triggered by environmental cues such as temperature changes, moon phases, and day length. The synchronization maximizes the likelihood of fertilization.

2) Asexual Reproduction.

One common form of asexual reproduction in corals is budding, where new polyps bud off from parent polyps. This process can occur within the same colony, helping it grow and expand.

3) Importance of Reproduction in Coral Ecology.

Coral reproduction is crucial for the maintenance and expansion of coral reefs. Sexual reproduction introduces genetic diversity, which enhances the resilience of coral populations to environmental stressors such as climate change, diseases, and bleaching events. Asexual reproduction allows for the rapid expansion of colonies and the repair of damaged areas within a reef.

Summary

Green Astreopora is an eye-catching encrusting coral. Polyps are vivid green, set on their own raised mounds on a dark surface. Patterns on the coral changes as the polyps open and close. Green Astreopora is resilient, making it one of the easier hard corals to look after. They do host photosynthetic algae but do not need much light. they should, however, be placed in a strong enough current to prevent smothering. These corals can be given small foods such as plankton.