Acurel Activated Carbon Pellets 3 lbs Sera Marine Granules Nature the magnesium concentration in reef

the magnesium concentration in reef aquaria should be adjusted to

Silicate and phosphate free

economical aquarium filter

Once the aquarium has attained the desired appearance

Acurel Activated Carbon Pellets 3 lbs Sera Marine Granules Nature the magnesium concentration in reefAcurel Activated Carbon Pellets are an effective pelletized filter carbon suited for freshwater and marine aquariums and ponds. Extremely economical, these pellets absorb toxic waste and prevent the buildup of harmful gases. The large absorption pores are vital to removing organic compounds and dissolved organics. Comes in a convenient zip lock resealable bag. Size: 3 pounds