One tube of complete medium.
One tube lacking one of each mineral - nitrogen, phosphorus, calcium, potassium, magnesium, iron or sulphur.
Eight tubes each containing sufficient material to prepare four litres of liquid medium.

Biology School Lab Equipment Suppliers in India 

Ltekonline are the manufacturers of Sachs Water Culture Mineral Deficiency Plant Laboratory Equipment Lab used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Biology Laboratory Equipment for Engineering Teaching Lab in Universities