Joker Moon Brain Diploastrea

Diploastrea heliopora

Saltwater Coral Species Group: Diploastrea Family: Faviidae

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Water parameters

Temp 76-80 F Temperature

Maintaining a stable and appropriate temperature is critical for the survival of aquatic life.

 pH 7.8 - 8.4 potential of Hydrogen

Measuring the acidity or alkalinity of water on a 0–14 scale, where 7 is neutral, 7 is alkaline.

 NO3 1-20 ppm Nitrate

While less toxic than ammonia, high nitrate levels (above 40–80 ppm) are important to monitor because they can cause fish stress, stunted growth, and harmful algae blooms.

 NO2 <0.0001 ppm Nitrite

It is a highly toxic, intermediate compound in the nitrogen cycle produced from broken-down ammonia

 PO4 0.01 - 0.1 ppm Phosphate

It is essential for plant development but must be managed, as excess levels trigger nuisance algae blooms and inhibit coral calcification.

 NH3 <0.1 ppm Ammonia

It is the primary killer of aquarium fish, causing gill damage, stress, and death

 Ca 380 - 450 ppm Calcium

Supporting the growth, skeletal structure, and shell formation of corals, mollusks, crustaceans, and coralline algae

 KH 8 - 12 dKH Alkalinity

It acts as a shield, neutralizing acids to prevent dangerous pH "crashes" that can harm fish, corals, and plants.

 Mg 1200 - 1400 ppm Magnesium

It enables coral growth by supporting skeletal formation, assists in metabolic processes, and ensures that calcium is available for corals, clams, and coralline algae.

 SG 1.023 - 1.026 SG Salinity

Essential for maintaining stable, natural water parameters, proper osmoregulation, and stress-free environments for marine fish and corals

 ORP 250 - 400 mV Oxidation-Reduction Potential

A higher positive mV indicates clean, oxygen-rich water with high water quality, while low readings indicate high pollution.

About Joker Moon Brain Diploastrea

General information

In general, corals coming from the genus Diploastrea have corallites that are closely fused together. Their corallite walls are submerged while the mouth is elevated and highly pronounced. For the Joker Moon Brain Diploastrea, they are predominatly colored yellow brown. This are the water parameters for cultivating Joker Moon Brain Diploastrea:

  • Calcium: 400 – 450 ppm
  • Alkalinity: 2.86 – 3.93 MEQ/L (8 – 11 dKH)
  • Phosphates: 0
  • Magnesium: 1200 – 1350
  • Strontium: 8 -10
  • Temperature: 74° – 83° F (23° – 28° C)
  • Salinity / Specific Gravity: 1.023 – 1.025

Diet & nutrition

The Joker Moon Brain Diploastrea get its primary nourishment from the symbiotic zooxanthellae living within their tissues. However, we do recommend you still do supplemental feeding by adding mysis and brine shrimp in the water.

Determining sex

A mature tank is highly recommended in propagating Joker Moon Brain Diploastrea. They need to be set at the bottom or at the middle portion of the tank where lighting and waterflow are in moderation.

Breeding & spawning

Joker Moon Brain Diploastrea requires moderate lighting and moderate water flow.

Origination

The Joker Moon Brain Diploastrea can be found in the waters of the Indo-Pacific. They are now classified as near threatened species listed under Appendix II of the CITES, which means that their international trade is monitored.

Cautions

Joker Moon Brain Diploastrea must be set in the tank with enough spacing in relation to other coral species.

Acclimation process

Since the Joker Moon Brain Diploastrea is a marine species, salinity must be entirely maintained at 1.023 to 1.025 specific gravity.

All photos

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