Coral Care Info Frogspawn


Introduction to Frogspawn Coral Care Requirements of Frogspawn Coral in Home Reef Aquariums

Frogspawn Coral (Euphyllia divisa) is a Large Polyp Stony (LPS) coral recognized for its long, branching tentacles that resemble frog eggs. It is one of the most popular LPS corals due to its graceful movement, vibrant coloration, and moderate care requirements. Available in green, purple, pink, and gold varieties, Frogspawn adds a dramatic and eye-catching effect to reef tanks.

Like its close relatives—Hammer Coral (Euphyllia ancora) and Torch Coral (Euphyllia glabrescens)—Frogspawn Coral has moderate aggression and uses sweeper tentacles to defend its space. Proper placement is essential to prevent conflicts with nearby corals.

Natural Habitat and Location in the Wild

Frogspawn Coral is found in the Indo-Pacific region, particularly in Australia, Indonesia, Fiji, the Solomon Islands, and the Great Barrier Reef. It thrives in lagoonal reefs and reef slopes, where it grows in moderate lighting and gentle water flow while attaching to rocky substrates.

Why Choose Frogspawn Coral for Your Reef Tank?

  • Flowing, Tentacle-Like Movement – Adds dynamic motion to the aquarium.
  • Moderate Care Level – Hardy but requires stable parameters.
  • Branching & Wall Growth Forms – Adaptable to different tank setups.
  • Photosynthetic but Benefits from Feeding – Gains energy from both light and supplemental feedings.

Optimal Water Parameters

Maintaining stable conditions ensures the best health and coloration for Frogspawn Coral:

ParameterIdeal Range
Temperature76-80°F (24-27°C)
Salinity1.024-1.026 SG
pH8.1-8.4
Alkalinity8-10 dKH
Calcium400-450 ppm
Magnesium1250-1350 ppm
Nitrate5-10 ppm
Phosphate0.03-0.07 ppm

Regular water changes (10-15% weekly) help maintain stability and prevent nutrient imbalances.

Tank Size and Setup

  • Minimum Tank Size: 30 gallons or larger.
  • Placement: Prefers mid to lower areas of the tank with moderate flow.
  • Substrate Considerations: Best placed on rockwork, ensuring enough space for tentacle extension.

Lighting Requirements

Frogspawn Coral thrives under moderate lighting, which enhances its fluorescence while preventing bleaching.

  • PAR Range: 100-200 PAR
  • Lighting Type: LED, T5, or hybrid setups.
  • Lighting Schedule: 8-10 hours per day, with gradual intensity transitions.

Water Flow and Circulation

  • Moderate, indirect water flow ensures proper tentacle extension.
  • Avoid strong, direct currents, which can cause tissue recession.
  • Randomized flow patterns help prevent detritus buildup and enhance nutrient absorption.

Feeding and Nutrition

Frogspawn Coral benefits from both photosynthesis and direct feeding, absorbing nutrients through its polyps.

  • Preferred Foods: Mysis shrimp, brine shrimp, reef roids, and amino acids.
  • Feeding Frequency: 2-3 times per week enhances growth and polyp extension.
  • Best Feeding Method: Target feeding at night when tentacles are extended.

Tank Mates and Compatibility

  • Safe Companions: Clownfish, gobies, blennies, shrimp, and snails.
  • Caution With: Other LPS corals—Frogspawn has long sweeper tentacles that can sting neighbors.
  • Avoid: Aggressive fish like certain angelfish and butterflyfish, which may nip at its tentacles.

Growth Rate and Propagation

  • Moderate growth rate, expanding as it absorbs nutrients.
  • Fragging Method: Branching varieties can be fragged using a bone cutter, while wall varieties are more difficult to propagate.

Common Diseases and How to Prevent Them

  • Brown Jelly Disease – A bacterial infection requiring iodine dips and improved water quality.
  • Tissue Recession – Often caused by unstable parameters, excessive flow, or aggression from nearby corals.
  • Algae Overgrowth – Can suffocate the coral if excess nutrients are present.

Handling and Acclimation

  • Drip acclimation is recommended to gradually adjust the coral to new water conditions.
  • Minimize handling, as its fleshy structure is prone to damage.

Maintenance and Cleaning

  • Perform weekly water changes (10-15%) to maintain water quality.
  • Remove detritus buildup around the coral to prevent bacterial infections.

Signs of Stress and How to Address Them

  • Shrunken or retracted tentacles – May indicate poor water quality, excessive flow, or aggressive tank mates.
  • Faded or bleached coloration – Reduce light intensity and increase feeding.
  • Receding tissue or damage – Ensure stable water conditions and avoid sharp surfaces.

Troubleshooting Common Issues

  • Bleaching – Caused by excessive light exposure; relocate to a lower-light area.
  • Pest Infestation – Inspect regularly for flatworms, nudibranchs, or parasitic snails.
  • Slow Growth – Increase target feeding and ensure stable alkalinity and calcium levels.
FAQs on Frogspawn Coral Care
How fast does Frogspawn Coral grow?

It has a moderate growth rate, expanding slowly over time.

Can Frogspawn Coral be kept in a nano tank?

Yes, but stable water parameters and ample space for tentacle extension are essential.

Does Frogspawn Coral require direct feeding?

While it survives on photosynthesis, target feeding enhances growth and tentacle extension.

How can I tell if my coral is unhealthy?

Signs include retracted tentacles, faded colors, or tissue loss.

Can Frogspawn Coral be placed near other corals?

It should be spaced at least 6 inches away to prevent stinging other corals.

What is the best way to frag Frogspawn Coral?

Branching varieties can be fragged using a bone cutter, but wall varieties are difficult to propagate.