Coral Care Info Frogspawn

Frogspawn coral (Euphyllia divisa) is a popular large polyp stony coral known for its branching heads and tentacles that resemble clusters of frog eggs. Its flowing movement and bright coloration make it a standout addition to reef aquariums, especially in mixed reef and LPS-dominant systems. Frogspawn is often chosen for its balance of visual impact and relatively manageable care requirements when kept in stable conditions.

Care Requirements

Lighting (PAR Range)

• Frogspawn corals thrive in 80-150 PAR.
• Moderate lighting helps maintain strong color and healthy polyp extension.
• Too much light can lead to bleaching or retraction.
• Always acclimate new specimens slowly, especially pieces from new arrival corals.

Flow

• Moderate, indirect flow is ideal.
• Flow should create a gentle swaying motion of the tentacles.
• Direct, strong flow can damage tissue and prevent full extension.
• Low flow may allow debris to collect around the base.

Placement

• Best placed in the middle to lower areas of the aquarium.
• Provide enough space for full extension and movement.
• Keep distance from other corals due to sweeper tentacles.
• Placement is especially important in tanks with small polyp stonies corals that are more sensitive to stings.

Aggression

• Moderately aggressive coral.
• Can extend sweeper tentacles that sting nearby corals.
• Usually less aggressive than Torch corals but still requires spacing.
• Best kept with adequate distance from neighboring colonies.

Growth Rate

• Moderate growth under stable conditions.
• Can form multi-head branching colonies over time.
• Growth improves with proper feeding and stable parameters.
• Consistent alkalinity and calcium levels support healthy development.

Feeding

Frogspawn corals benefit from supplemental feeding, although they rely heavily on photosynthesis for energy. Target feeding can improve growth and expansion, especially in well-established reef tanks. Newly added specimens from newest corals should be allowed time to acclimate before consistent feeding begins.

• Feed meaty foods such as mysis shrimp, brine shrimp, or coral-specific foods.
• Feeding once or twice per week is usually sufficient.
• Avoid overfeeding to maintain stable water quality.

Tank Compatibility

Frogspawn corals are commonly used in mixed reef aquariums but require careful placement due to their ability to sting nearby corals. They can often coexist with other Euphyllia species, but spacing is still important. In tanks that include soft corals or spreading species like zoanthids, it is important to allow room for expansion and movement.

• Avoid placing near delicate or non-aggressive corals.
• Allow enough space for sweeper tentacles.
• Plan placement based on future colony growth.

Common Problems

• Tissue recession can result from unstable water parameters or poor flow.
• Brown jelly disease is a known risk and should be addressed quickly.
• Excessive light or flow can cause stress and retraction.
• Contact with nearby corals can lead to stinging damage.

Tips for Success

• Maintain stable alkalinity, calcium, and magnesium levels.
• Acclimate slowly to lighting and flow changes.
• Provide enough space to prevent aggression issues.
• Observe extension regularly to monitor coral health.
• Keep consistent reef conditions for long-term success.

Frequently Asked Questions

Is Frogspawn coral aggressive?
Frogspawn is moderately aggressive and can extend sweeper tentacles that sting nearby corals. Proper spacing is important in mixed reef tanks.

Can Frogspawn be placed with other Euphyllia?
In some cases, Frogspawn can coexist with other Euphyllia like Hammer corals, but caution and spacing are still recommended to prevent damage.

How fast does Frogspawn coral grow?
Frogspawn has a moderate growth rate and can develop into large branching colonies over time when conditions are stable.

Does Frogspawn need to be fed?
While it gets energy from light, supplemental feeding can improve growth, coloration, and overall health.

Frogspawn coral is a great choice for reef keepers looking to add movement and color to their aquarium while maintaining manageable care requirements. With proper placement and stable parameters, it can grow into a beautiful, flowing centerpiece. You can explore similar species in our large polyp stonies corals collection, browse new additions in our new arrival coral colonies, discover standout pieces in our featured corals, learn about our systems on our facility page, and stay updated through the Extreme Corals news and updates blog.