Aquaforest Frag Rock

About Aquaforest Frag Rock

Aquaforest Frag Rock is designed for coral fragging and reef aquascaping, providing a stable base for attaching coral fragments as they grow. Frag rocks help aquarists position new corals neatly within a reef aquarium or coral propagation system.

They can be used when mounting freshly cut coral fragments, arranging frags in a dedicated grow-out area, or creating a more natural transition between coral colonies and the surrounding rockwork.

For best results, use an appropriate reef-safe coral adhesive to secure the frag to the rock. Allow adhesives to cure according to their instructions, and avoid placing newly mounted frags where strong flow could dislodge them.

Aquaforest products are developed for marine aquarium use. Check the specific product packaging for the recommended application and preparation instructions before placing Frag Rock into your aquarium.

Aquaforest Frag Rocks are made from lightweight, highly porous materials designed to support coral attachment and beneficial bacteria. They are available in white, black and purple. Official dimensions are approximately 43 mm diameter × 20–22 mm high.

Quick Care Guide

• Brand: Aquaforest

• Product: AF Frag Rocks

• Type: Coral frag mounting rock

• Pack Size: 24 pieces (availability may vary)

• Colours: White, black and purple

• Diameter: 43 mm

• Height: 20–22 mm

• Material: Lightweight, porous artificial rock

• Aquarium Type: Marine / Reef

• Suitable For: SPS, LPS and soft coral fragments

• Main Benefits: Stable coral mounting, high porosity and bacterial colonisation

• Placement: Frag racks, sand beds or aquarium rockwork

• Preparation: Follow the manufacturer's instructions before use

Frequently Asked Questions

What are Aquaforest Frag Rocks used for?

They provide a stable base for attaching coral fragments during fragging, propagation and grow-out.

Are they reef safe?

They are designed for marine aquarium use and are described by Aquaforest as biologically neutral. 

Can I glue coral frags to them?

Yes. Use an aquarium-safe coral adhesive suitable for the coral and mounting method.

Do they help biological filtration?

Yes. Their porous surface provides habitat for beneficial microorganisms.

Which colours are available?

White, black and purple, allowing you to choose a colour that suits your frag rack or reef display.

Common Mistakes

• Using adhesives that are not aquarium safe.

• Leaving new coral frags unsecured in strong flow.

• Handling fresh coral cuts without suitable precautions.

• Assuming frag rocks replace the aquarium's main biological filtration.

• Choosing a colour without considering how it will look in the display.