Ultum Nature Systems Controbase is a supplemental, nutrient-rich base substrate designed for planted aquarium use. This highly porous substrate is pumice stone infused with slow-releasing Nitrogen, Potassium, Phosphorous, and trace elements. It provides numerous benefits like support for heavy root-feeding aquatic plant species and excess nutrient regulation. Its larger 6-8mm granule size promotes improved water flow and oxygenation, cultivating beneficial bacteria growth and improving plant vitality. Key Features & Important Notes Comes pre-bagged in mesh filter bags for easy removal and reusability. Place mesh bags in the tank as is - Do not remove Controbase from the mesh bags. Controbase can be stacked to create varying slope heights for aquascaping. Nutrients will last for approximately three months. Ideal to use with UNS Controsoil or Controsand layered on top depending on your aquarium’s needs (info below). Important Note: Do not wash. Spread evenly beneath planted aquarium soil, sand, or gravel. Ensure that at least 2 inches of substrate is layered on top of controbase. Product Specifications UNS Controbase 2L Includes 4 individual 0.5L mesh bags of Controbase. Aquarium Size: up to 20 gallons (UNS 60U Standard Rimless Tank) UNS Controbase 8L Includes 16 individual 0.5L mesh bags of Controbase. Aquarium Size: up to 114 gallons (UNS 120U Standard Rimless Tank)
