Grow LightOptional. Keep seeds and young plants a few inches from the light. Grow lights are designed to give a specific temperature of light, 6500K.
net potsThese hold your plants and go into your tower. They have slits in the bottom to allow water in and your plant's roots to grow out.
hydrotonClay balls that help regulate moisture and hold your plants in place. They are chemically inert, so will not affect your water's pH.
gh maxigroGeneral Hydroponics MaxiGro is my preferred nutrient for early stage plants. Buy it online or at a local hydroponics supply store.
gh maxi bloomGeneral Hydroponics MaxiBloom is my preferred nutrient for blooming flowers and growing fruits and veggies. Buy it online or at a local hydroponics supply store.
TimerGet a timer with 15 minute intervals. Found and hardware, hydroponic supply stores, or, of course, online.
PPM Meter(optional) Measures how many parts per million of solids is in your water. Good water should be under 50 ppm. With your plant food, it should be between 800 and 1500 ppm. Add water to dilute or nutrients to strengthen. You can easily measure this in the water in the lid of your tower. Buy online or at a hydroponics supply store.
pH Measure and Adjust(optional) I use General Hydroponics pH Up/Down and testing. Most plants do best in a pH around 6 to 6.5. If you need to adjust it start small, especially with powder concentrate and give few minutes for the solution to cycle and mix. You don't want to chase a number up and down.
Tools of the Trade
Your tower will come with everything you need to start, but eventually you may need to order additional supplies, such as nutrients. If you want to up your grow game you can also measure water pH and use grow lights to strengthen your seedlings while still indoors.