Expanded clay pellets Valves They have a large platform

They have a large platform with leveling feet

The blue colour does show scratches

a second water source may be introduced to the lower units

Recommended for water temperatures 15°C to 24°C

9" x 6" nest are 4" deep with a 18" handle

Expanded clay pellets Valves They have a large platformThis light weight clay aggregate is an excellent growing medium for any hydroponic system and pond plants. Clay aggregates are heated at 1,200C, creating an inner pore structure and ceramic shell that holds moisture for roots and helps minimize the buildup of salts and nutrients. The aggregate wicks the water and nutrient solution upward, pebble by pebble, releasing it to the plant roots as needed. The round shaped structure provides excellent root