1.clay soil for aquarium 2.factory direct sale 3.Specification: from 2mm ... .PH: neutral 6.5 to 7 clay aggregates for aquarium plantsArtificial soil/ artificial soil ball/ water plants soil/ ... shrubs, roof garden plants, water plants, potted flower plants, aquarium breeding 11. Advantages: lighter than ordinary soils, ventilate, promoting ... friendly and high fertilizer efficiency clay soil for aquarium