LUSHGro-HYDRO Liquid consists of 2 bottles of solutions - Solution A and B. Solution A to be used with Solution B.The solution contains N, Ca & Fe. It is a complete balanced liquid fertilizer for hydroponics, indoor/outdoor potted plants& Herbs.It comes in 3 sizes:- 250ml of LushGro - Hydro: $ 12.00- 500 ml of LushGro- Hydro: S 16.50 - 1 Litre of LushGro- Hydro: $ 21.00- 5 Litres of LushGro- Hydro: $ 75.00We also cater to larger sizes based advanced order.