Seachem CoralCrete – Aquarium Coral & Rock Epoxy Putty

Seachem CoralCrete is a high-quality, two-part epoxy putty designed for securely attaching corals to rockwork and creating stable aquascapes in marine and freshwater aquariums.

Perfect for reef keepers, CoralCrete provides a strong, reliable bond that helps prevent corals from becoming dislodged or knocked over by fish, invertebrates and water movement.

Its easy-to-use formula can be applied both underwater and outside the aquarium, making it ideal for attaching coral frags, securing larger coral colonies and joining pieces of rockwork together.

With approximately 5 minutes of working time, CoralCrete allows you to position your corals before hardening, with a full cure achieved within 24 hours.

Features & Benefits

• Two-part aquarium-safe epoxy putty

• Ideal for securing corals to live rock and reef structures

• Perfect for attaching larger coral colonies and frags

• Can be used to join rockwork and create stable aquascapes

• Suitable for underwater and above-water application

• Approximately 5-minute working time

• Begins hardening within 5 minutes

• Sets in approximately 15 minutes

• Fully cures within 24 hours

• Suitable for marine and freshwater aquariums

• Safe for aquarium inhabitants when used as directed

• Available in Purple and Grey

• Available in 57g and 114g sizes

Secure Coral Placement

Corals can become dislodged by strong water movement, fish and other aquarium inhabitants, potentially causing damage to delicate coral tissue.

Seachem CoralCrete helps secure corals in their chosen positions, providing a stable foundation for healthy growth.

It is particularly useful for:

• Branching Corals – Securing larger branching colonies to reef rock

• LPS Corals – Providing support for larger stony coral colonies

• Plating Corals – Attaching plating corals to suitable rockwork

• Coral Frags – Securing frag plugs and coral bases to rock structures

• Aquascaping – Joining rocks together to create stable formations

Ideal for Reef Aquascaping

In addition to mounting corals, CoralCrete can be used to join pieces of aquarium rockwork together.

This makes it useful for creating arches, caves, coral platforms and other decorative structures.

The putty can be moulded around uneven surfaces, helping it grip natural grooves and pores in aquarium rock.

For larger or heavier rock structures, additional mechanical support may be required.

Available Colours

Purple CoralCrete

Designed to blend naturally with the purple and pink tones commonly found on coralline algae-covered reef rock.

Grey CoralCrete

Ideal for blending with natural grey rockwork and artificial reef structures.

Both colours provide the same bonding performance, allowing you to choose the finish that best suits your aquarium.

Available Sizes

How to Use Seachem CoralCrete

1. Cut off the required amount of CoralCrete from the epoxy stick.

2. Replace the unused portion in its protective storage tube.

3. Remove the outer film from the portion being used.

4. Knead the two-part epoxy together until a completely uniform colour is achieved.

5. Apply the mixed putty to the coral base or rockwork.

6. Press firmly into the contact surfaces, ensuring the putty fills natural grooves and pores.

7. Hold or support the coral or rock in position while the putty begins to harden.

CoralCrete can be applied directly underwater or outside the aquarium.

Setting & Curing Times

• Working Time: Approximately 5 minutes

• Initial Hardening: Begins after approximately 5 minutes

• Setting Time: Approximately 15 minutes

• Full Cure: 24 hours

Once fully cured, CoralCrete forms a hard, durable bond suitable for aquarium use.

Specifications

• Brand: Seachem

• Product: CoralCrete

• Product Type: Two-Part Epoxy Putty

• Application: Coral Mounting & Aquarium Rockwork

• Suitable For: Marine & Freshwater Aquariums

• Application Method: Underwater or Above Water

• Working Time: Approximately 5 Minutes

• Setting Time: Approximately 15 Minutes

• Full Cure: 24 Hours

• Available Colours: Purple & Grey

• Available Sizes: 57g & 114g

Why Choose Seachem CoralCrete?

Seachem CoralCrete is an essential aquascaping product for reef keepers looking to secure corals and create stable, attractive rock structures.

Its mouldable two-part formula, convenient underwater application and reliable curing performance make it ideal for everything from mounting individual coral frags to constructing more elaborate reef displays.

Whether you're adding new corals or rearranging your existing reef, CoralCrete provides a practical and dependable solution.

Available in Purple or Grey, in 57g and 114g sizes.

Please note: Always follow the manufacturer's instructions. Wear suitable protective gloves and avoid contact with skin and eyes. Protein skimmers may temporarily overreact during curing, so monitor skimmer performance carefully. CoralCrete is safe for aquarium inhabitants when used as directed.