Riddler Ultra Torch

Euphyllia sp

Saltwater Coral Species Group: Euphyllia Family: Euphyllidae

Log in or create an account to add this species to your tanks.

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 Riddler Ultra Torch

General information

In general, corals from the genus Euphyllia have long tentacles that may stretch out 2 to 4 inches and are usually extended out most of the time. When the polyps are retracted, you can clearly see that each corallite is completely separated from each other and is encased by its own wall.

This is the water parameters for cultivating Riddler Ultra Torch Euphyllia:

  • Calcium: 420 – 440 ppm
  • Alkalinity: 2.86 – 3.93 MEQ/L (8 – 11 dKH)
  • Phosphates: 0
  • Magnesium: 1260 – 1350
  • Strontium: 8 -10
  • Temperature: 75° – 80° F (24° – 27° C)
  • Salinity / Specific Gravity: 1.023 – 1.025
  • pH: 8.1 – 8.4

Diet & nutrition

The Riddler Ultra Torch Euphyllia gets its primary nutrition from the symbiotic zooxanthellae living within its tissues. However, we still do recommend you do supplemental feeding by adding mysis and brine shrimp.

Determining sex

A mature tank is highly recommended in propagating Riddler Ultra Torch Euphyllia. They need to be set in the middle or bottom portion of the tank.

Breeding & spawning

Riddler Ultra Torch Euphyllia requires moderate lighting and moderate to strong water flow.

Diseases

The Riddler Ultra Torch Euphyllia is prone to brown jelly infection, especially if there is minimal water flow.

Cautions

The Riddler Ultra Torch Euphyllia has semi-aggressive behavior. With this, proper spacing in relation to other coral specimens is recommended.

Acclimation process

Since Riddler Ultra Torch Euphyllia is a marine species, salinity must be entirely maintained at 1.023 to 1.025 specific gravity.

All photos

Tap a photo to open the gallery viewer.