Ocean Aquaria Seven Tube Sponge – Artificial Coral for Fish Tank & Aquarium Decor #648 (Blue)

Seven Tube Sponge – Artificial Coral for Fish Tank & Aquarium Decor – #648 Dimensions: 7″ x 7″ x 8″ Material: Durable Urethane Rubber This piece was molded using a real dead tube sponge to ensure the most accurate representation possible. Tube sponges are known for their tall cylindrical openings that rise vertically from a shared base, forming clustered groups that create both height and depth on the reef. Each tube typically varies slightly in diameter and height, with naturally irregular rims and subtle surface texture along the exterior walls. This replica captures that organic arrangement with seven distinct tubes rising together, recreating the layered, natural growth pattern commonly seen in reef sponge colonies. At 7″ x 7″ x 8″, the piece provides strong vertical structure while still maintaining open spaces between the tubes, giving the display a natural reef look without appearing overly dense. Made from solid, reef-safe urethane rubber with no added fillers, this coral is built for full submersion and long-term durability. It will not leach, degrade, or affect water chemistry, making it safe for fish, invertebrates, and live rock systems. Established in 2001, Ocean Aquaria has been producing realistic artificial coral for over two decades, focusing on accurate molds, safe materials, and long-lasting durability trusted by hobbyists, public aquariums, and professional installers. Available in multiple color options. If you need a specific tone to match your reefscape, custom requests are always welcome. Care Note: Rinse with warm water and gently clean with a soft brush as needed. Do not use bleach.

• Dimensions: 7″ x 7″ x 8″ Material: Durable Urethane Rubber
• Tube sponges are known for their tall cylindrical openings that rise vertically from a shared base, forming clustered groups that create both height and depth on the reef. Each tube typically varies slightly in diameter and height, with naturally irregular rims and subtle surface texture along the exterior walls. This replica captures that organic arrangement with seven distinct tubes rising together, recreating the layered, natural growth pattern commonly seen in reef sponge colonies. At 7″ x 7″ x 8″, the piece provides strong vertical structure while still maintaining open spaces between the tubes, giving the display a natural reef look without appearing overly dense.
• Made from solid, reef-safe urethane rubber with no added fillers, this coral is built for full submersion and long-term durability. It will not leach, degrade, or affect water chemistry, making it safe for fish, invertebrates, and live rock systems.
• Established in 2001, Ocean Aquaria has been producing realistic artificial coral for over two decades, focusing on accurate molds, safe materials, and long-lasting durability trusted by hobbyists, public aquariums, and professional installers.