Aquaponic system top half barrel is used for filtration & aLSo a growbed for plants, two connected barreLS hold almost 100 gallons of water. Both barreLS can hold fish giving you the flexibility to separate sizes or s
Kit Safe Water Refill, Contains: Student instructions, Simulated samples of well water, tap water, and bottled water, Nitrate Test Solution, Arsenic Test Solution, Coliform Bacteria Test solution, Labeled droppers, Well Water Testing sheet, Bottled Water Testing sheet
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