Rainbow Hellfire Yuma

Ricordea yuma

Saltwater Coral Species Group: Mushroom Ricordea Family: Ricordeidae

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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 Rainbow Hellfire Yuma

General information

In general, mushroom corals coming from the genus Ricordea have a small and rounded body with berry shaped tentacles. Both sides of the Ricordea Mushroom Corals are functional where the bottom part acts as a locomotive mechanism while the top portion acts like a mouth.

They are known to move to a different spot in the tank to find better lighting. Water parameters for cultivating Rainbow Hellfire Yuma: 

  • Calcium: 400 – 450 ppm
  • Alkalinity: 2.86 – 4.29 MEQ/L (8 – 12 dKH)
  • Phosphates: 0
  • Magnesium: 1200 – 1350
  • Strontium: 8 – 10
  • Temperature: 72° – 78° F (22° – 26° C)
  • Salinity / Specific Gravity: 1.023 – 1.025
  • pH: 8.1 – 8.4

Diet & nutrition

In the wild, Rainbow Hellfire Yuma has developed a symbiotic feeding relationship with marine algae called zooxanthellae that are living within their tissues. But in captivity, you have to feed them with nanoplankton and you may add dissolved organics in the water.

Determining sex

A mature tank is highly recommended in propagating Rainbow Hellfire Yuma. They must be set at the bottom of the tank to simulate their natural wild environment.

Breeding & spawning

The Rainbow Hellfire Yuma requires moderate lighting and moderate water flow.

Cautions

The Rainbow Hellfire Yuma has semi-aggressive behavior. Proper spacing must be observed in relation to other coral species in the tank.

Acclimation process

The Rainbow Hellfire Yuma is a marine species. Therefore, salinity must be maintained thoroughly at 1.023 to 1.025 specific gravity.

All photos

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