Axinella polypoides Sponge XL (approximately 25 cm)

Axinella polypoides – Marine Sponge

A Structuring and Filtering Sponge

Axinella polypoides is a non-photosynthetic marine sponge native to Mediterranean rocky areas and sometimes imported for reef aquariums. It develops in thin, upright, and branched stems, creating a natural silhouette resembling an underwater bush with bright yellow to orange hues.

An Important Role in the Aquarium Ecosystem

As a filtering sponge, Axinella polypoides captures fine particles, microorganisms, and suspended matter in the water. It thus contributes to the clarity of the water and the good biological balance of the tank. Its natural appearance and slender shapes also make it an original decorative element.

Conditions for Aquarium Maintenance

Lighting and Water Flow

This sponge requires no specific lighting since it does not contain zooxanthellae. However, it requires moderate to strong water flow and a particle-rich environment to feed naturally.

Water Parameters

Axinella polypoides prefers clean, well-oxygenated, and stable water:

• Temperature: 22–26°C
• Salinity: 35 ppt (1.025)
• pH: 8.0–8.3
• KH: 7–9 dKH
• No direct exposure to air: handle only underwater

Handling and Precautions

Like all marine sponges, Axinella polypoides must never be exposed to air: this blocks its internal channels and may cause its death. It is therefore essential to transfer it completely submerged during acclimation or relocation.

Add a Natural and Filtering Touch to Your Reef

Original, useful, and decorative, Axinella polypoides is an excellent option for reef enthusiasts looking to enrich their tank with a non-aggressive, natural, and functional species. Its thin and upright shape perfectly complements the more massive forms of corals and live rocks.