Seachem SeaGel 250ml – Carbon & Phosphate Remover for Marine & Freshwater Aquariums

Seachem SeaGel 250ml is a premium dual-action filtration media designed to improve water clarity and quality in both marine and freshwater aquariums. It combines Matrix Carbon for powerful organic waste removal with PhosGuard for rapid phosphate and silicate control — all without releasing phosphate back into the water.

Unlike traditional carbon, Matrix Carbon’s unique spherical bead structure maximizes water flow, prevents clumping, and targets larger organic molecules responsible for discoloration and poor water quality. PhosGuard complements this by efficiently removing phosphates and silicates that contribute to algae growth, making SeaGel an ideal choice for reef tanks, fish-only systems, and planted aquariums (excluding phosphate-buffered freshwater setups).

Long-lasting and easy to use, SeaGel works continuously for up to 3–4 months, helping you maintain a cleaner, healthier aquarium with minimal maintenance.

Key Features:

• Dual-action media: Matrix Carbon + PhosGuard
• Removes organic waste, discoloration, acids, phosphate & silicate
• Improves water clarity and overall aquarium health
• Spherical bead design for maximum water flow
• Non-clumping, high-performance filtration
• Safe for marine and most freshwater aquariums
• Effective for up to 3–4 months
• Ideal for reef tanks and algae control

Seachem SeaGel 250ml is an advanced filtration solution that delivers crystal-clear water by combining high-grade activated carbon with powerful phosphate removal media. Easy to use and long-lasting, it’s a must-have for aquarists who want superior water quality and reduced algae growth. Available now at Reef Freaks.